Among these car roof cargo boxes, I’d choose the Thule Force 3 XL as the best overall for shoppers prioritizing a hard-shell design from an established cargo-box line. The Maxsa Innovations 21 cu ft hard-shell box is a standout for buyers who want high stated capacity, while the SportRack Vista XL suits drivers who prefer rear access. Soft carriers from Sailnovo, FIVKLEMNZ, MeeFar, Asinking, WORKPRO, and MIDABAO offer a more flexible alternative, but demand different care and attachment checks than rigid boxes. The main tradeoffs are capacity versus vehicle fit, hard-shell security versus soft-bag packability, and opening style versus access around the car. Read on for my comparison of all 15 options and a guide to choosing a setup that matches your vehicle and trips.
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Key Takeaways
- Hard-shell boxes and soft carriers solve different problems: the Maxsa and Thule models prioritize a rigid enclosure, while the 20–21-cubic-foot bags emphasize flexible storage.
- Capacity figures are not a fit guarantee: the listed 21-cubic-foot bags may carry more volume than compact 11–14-cubic-foot boxes, but vehicle roof limits and usable shape still decide what you can load.
- Opening direction affects everyday usability: the SportRack Vista XL is rear-opening, while the Garvee and Thule Pulse 2 M are identified as dual-side opening models.
- Several products cluster around similar bag capacities: Sailnovo, FIVKLEMNZ, MeeFar, Asinking, WORKPRO, and MIDABAO all claim roughly 20–21 cubic feet, so closure design, attachment method, and vehicle compatibility deserve close comparison.
- Maximum stated load differs from cargo volume: the Maxsa hard-shell models list a 165-pound capacity, but buyers still need to follow the vehicle, roof-rack, and box limits—whichever is lowest.
| DNA MOTORING Lockable Rooftop Cargo Box, 11 Cubic Feet, Textured Black |  | Best Compact Hard-Shell Pick | Brand: DNA MOTORING | Model: PT-ZTL-8166-BK | Capacity: 11 cubic feet | VIEW LATEST PRICE | See Our Full Breakdown |
| Thule Force 3 XL Rooftop Cargo Box |  | Best for Frequent Access | Brand: Thule | Model: Force 3 XL | Volume: 18 cu ft | VIEW LATEST PRICE | See Our Full Breakdown |
| Maxsa Innovations Hard-Shell Rooftop Cargo Box, 19.4 cu ft, 165 lb Capacity |  | Best for Heavy, Bulky Loads | Brand: Maxsa Innovations | Stated capacity: 19.4 cu ft; description also states 17 cu ft | Weight capacity: 165 lb | VIEW LATEST PRICE | See Our Full Breakdown |
| Sailnovo 20-Cubic-Foot Rooftop Cargo Carrier Bag |  | Best for Compact Storage Off the Car | Brand: Sailnovo | Capacity: 20 cubic feet | Dimensions: 51 x 39 x 17 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| FIVKLEMNZ 21-Cubic-Foot Waterproof Rooftop Cargo Carrier |  | Best Soft-Sided Weather Protection | Brand: FIVKLEMNZ | Capacity: 21 cubic feet | Dimensions: 52 x 40 x 17 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| Garvee Rooftop Cargo Box Carrier, 12 Cubic Feet, Dual-Side Opening |  | Best Compact Hard-Shell Pick | Capacity: 12 cubic feet (340 L) | Material: ABS | Dimensions: 54.3 × 31.5 × 13.4 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| MeeFar Waterproof Rooftop Cargo Bag, 21 Cubic Feet |  | Best for Rack-Free Flexibility | Capacity: 21 cubic feet | Dimensions: 47 × 35 × 22 inches | Weight: 4.88 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag |  | Best Soft-Bag Reinforcement | Capacity: 21 cubic feet | Material: 840D PVC | Dimensions: 52 × 40 × 18 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| SportRack Vista XL Rear-Opening Cargo Box, Black |  | Best for Rear Access | Capacity: 18 cubic feet (510 L) | Material: UV-resistant ABS plastic | Dimensions: 63 × 38 × 19 inches (160 × 96.5 × 48 cm) | VIEW LATEST PRICE | See Our Full Breakdown |
| Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box |  | Best for Maximum Hard-Shell Capacity | Capacity: 21 cubic feet | Dimensions: 68.11 × 31.89 × 14.57 inches | Item weight: 41.9 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| WORKPRO Waterproof Rooftop Cargo Carrier Bag, 21 Cubic Feet |  | Best Soft Carrier for Rack-Free Flexibility | Capacity: 21 cubic feet | Dimensions: 52 × 40 × 17 inches | Material: 840D PVC | VIEW LATEST PRICE | See Our Full Breakdown |
| Thule Pulse 2 M Roof-Mounted Cargo Box, 14 cu ft, Dual-Side Opening |  | Best for Straightforward Hard-Shell Use | Volume: 400 liters (14 cubic feet) | Load capacity: 75 kg | Mounting type: Roof mount | VIEW LATEST PRICE | See Our Full Breakdown |
| Maxsa Innovations Hard-Shell Rooftop Cargo Box, 17 cu. ft., 165 lb Capacity |  | Best for Larger Loads in a Hard Shell | Storage capacity: 17 cubic feet | Weight capacity: 165 lbs | Material: ABS | VIEW LATEST PRICE | See Our Full Breakdown |
| D SOLUTIONS Hard-Shell Rooftop Cargo Carrier, 11 cu ft, Textured Black |  | Best Compact Lockable Hard-Shell Pick | Capacity: 11 cubic feet | Dimensions: 53 × 34 × 15 inches | Material: ABS plastic | VIEW LATEST PRICE | See Our Full Breakdown |
| MIDABAO 20-Cubic-Foot Waterproof Car Roof Cargo Carrier |  | Best Value-Style Soft Bag for Flexible Fit | Capacity: 20 cubic feet | Dimensions: 51.1 × 39 × 17 inches | Weight: 3.94 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| car roof cargo boxe | Material | Dimensions | Capacity | Water resistance |
|---|---|---|---|---|
| DNA MOTORING Lockable Rooftop | ABS plastic | 53 x 34 x 15 inches | 11 cubic feet | Not water resistant |
| Thule Force 3 XL Rooftop Cargo | Plastic | 89 × 18 × 40 in | — | Water resistant |
| Maxsa Innovations Hard-Shell R | Waterproof ABS | 55.12 x 35.04 x 16.14 in | — | — |
| Sailnovo 20-Cubic-Foot Rooftop | 1000D Oxford cloth | 51 x 39 x 17 inches | 20 cubic feet | Water resistant |
| FIVKLEMNZ 21-Cubic-Foot Waterp | 840D PVC; Oxford cloth also listed in product details | 52 x 40 x 17 inches | 21 cubic feet | Waterproof, with welded seams and double-layer cover |
| Garvee Rooftop Cargo Box Carri | ABS | 54.3 × 31.5 × 13.4 inches | 12 cubic feet (340 L) | — |
| MeeFar Waterproof Rooftop Carg | 800D PVC tarpaulin | 47 × 35 × 22 inches | 21 cubic feet | Waterproof material with protective zipper flap |
| Asinking 21-Cubic-Foot Waterpr | 840D PVC | 52 × 40 × 18 inches | 21 cubic feet | Waterproof; reinforced seams and zipper cover |
| SportRack Vista XL Rear-Openin | UV-resistant ABS plastic | 63 × 38 × 19 inches (160 × 96.5 × 48 cm) | 18 cubic feet (510 L) | — |
| Maxsa Innovations 21 cu ft Har | ABS | 68.11 × 31.89 × 14.57 inches | 21 cubic feet | — |
| WORKPRO Waterproof Rooftop Car | 840D PVC | 52 × 40 × 17 inches | 21 cubic feet | — |
| Thule Pulse 2 M Roof-Mounted C | ASA-ABS plastic | — | — | — |
| Maxsa Innovations Hard-Shell R | ABS | 55.12 × 35.04 × 16.14 inches | — | — |
| D SOLUTIONS Hard-Shell Rooftop | ABS plastic | 53 × 34 × 15 inches | 11 cubic feet | Waterproof |
| MIDABAO 20-Cubic-Foot Waterpro | PVC and nylon | 51.1 × 39 × 17 inches | 20 cubic feet | Waterproof |
More Details on Our Top Picks
DNA MOTORING Lockable Rooftop Cargo Box, 11 Cubic Feet, Textured Black
The DNA MOTORING 11-cubic-foot box is a compact hard-shell choice for drivers who want cargo enclosed and secured without stepping up to a much larger carrier. Its lock and keys and side-opening lid make it more structured than the soft-sided Sailnovo and FIVKLEMNZ bags, while its 53-inch length may suit buyers who have limited roof space. The tradeoff is capacity: at 11 cubic feet, it holds less than the 18-cubic-foot Thule Force 3 XL and the larger bags in this roundup. It also requires crossbars, has a 110-pound evenly distributed load limit, and is listed as not water resistant. I’d choose it for enclosed storage on shorter trips, not for weather-exposed journeys or bulky family loads.
Pros:- Hard ABS shell encloses cargo more rigidly than the Sailnovo and FIVKLEMNZ soft bags.
- Includes a lock and two keys.
- Side opening provides access without removing the box.
- 11-cubic-foot capacity in a 53-inch-long format.
Cons:- Requires vehicle crossbars.
- Not water resistant, so it is a poor fit for exposed cargo in rain.
- 110-pound maximum load must be evenly distributed and is lower than the Maxsa Innovations hard-shell box’s listed 165-pound limit.
Best for: Drivers with crossbars who want a relatively compact hard-shell box for modest luggage loads and value a keyed lock.
Not ideal for: Travelers carrying bulky family gear or driving in wet conditions, since capacity is limited and the box is not water resistant.
- Brand:DNA MOTORING
- Model:PT-ZTL-8166-BK
- Capacity:11 cubic feet
- Dimensions:53 x 34 x 15 inches
- Material:ABS plastic
- Maximum load:110 lbs, evenly distributed
- Mounting:Roof mount; requires crossbars
- Closure:Lock with keys
- Water resistance:Not water resistant
Our verdict“Choose this compact hard shell for modest loads and keyed storage, but skip it if you need weather protection or high capacity.”
Thule Force 3 XL Rooftop Cargo Box
The Thule Force 3 XL earns its place for drivers who expect to reach their gear often, not just load it once and forget it. Access from both sides helps when a parking spot or roof-rack position makes one side awkward, while the mounting click indicator and SlideLock lid give clear feedback during setup and closing. That makes it more convenience-focused than the lockable but simpler DNA MOTORING box, and its 18-cubic-foot capacity offers substantially more room. The Maxsa Innovations hard-shell box lists even more volume and a higher load capacity, but the Thule’s water-resistant design and stated limited lifetime warranty may appeal to buyers prioritizing regular use. It still needs a compatible roof rack, and the supplied data lists dimensions that may make handling and storage awkward; check fit and lifting needs before choosing it.
Pros:- Dual-side access makes loading and retrieving gear easier from either side.
- Mounting system provides a click indicator when attached securely.
- SlideLock system indicates when the lid is securely closed.
- Water-resistant shell and 18-cubic-foot capacity suit regular travel use.
Cons:- Requires a compatible roof rack.
- Listed dimensions may make lifting and off-vehicle storage difficult.
- The listed 8 lb weight is unusually low for the stated dimensions, so buyers should confirm handling details with the seller.
Best for: Frequent road-trippers who have a compatible roof rack and want dual-side access plus clear mounting and lid-lock indicators.
Not ideal for: Drivers without a roof rack or anyone who needs a compact box that is easy to handle and store off the vehicle.
- Brand:Thule
- Model:Force 3 XL
- Volume:18 cu ft
- Dimensions:89 × 18 × 40 in
- Material:Plastic
- Water resistance:Water resistant
- Access:Both sides
- Mounting:Roof mount; compatible roof rack required
- Warranty:Limited lifetime
Our verdict“Pick the Thule for frequent two-sided access and guided mounting, provided your rack and storage space can accommodate it.”
Maxsa Innovations Hard-Shell Rooftop Cargo Box, 19.4 cu ft, 165 lb Capacity
Among these five options, the Maxsa Innovations hard-shell box pairs the highest stated load limit with a large, rigid enclosure: 19.4 cubic feet and up to 165 pounds. That makes it a stronger candidate for heavier gear than the DNA MOTORING box, whose stated limit is 110 pounds, and a more protective format than either soft cargo bag. Dual-side opening also helps when packing a broad box on a vehicle roof. There is a meaningful information gap, though: the listing gives 17 cubic feet in the description but 19.4 cubic feet elsewhere, so I would confirm the usable capacity before buying. Its 39.7-pound item weight and rack-compatibility requirement call for planning, and the strap mounting description does not remove the need to check the vehicle’s roof setup.
Pros:- Listed 165-pound load capacity exceeds the DNA MOTORING box’s 110-pound limit.
- Waterproof ABS shell offers more impact protection than soft-sided bags.
- Dual-side opening aids loading and access.
- Includes a security lock and two keys.
Cons:- Capacity is inconsistent across the listing: 19.4 cu ft in some fields and 17 cu ft in the description.
- At 39.7 lb, it is heavier to lift and handle than the soft-sided Sailnovo carrier.
- Roof-rack compatibility must be checked before purchase.
Best for: Drivers with a compatible roof rack who carry heavier or bulky luggage and prefer a rigid, waterproof shell with access from both sides.
Not ideal for: Buyers who need an unambiguous capacity specification, a lightweight carrier, or a setup that does not depend on roof-rack compatibility.
- Brand:Maxsa Innovations
- Stated capacity:19.4 cu ft; description also states 17 cu ft
- Weight capacity:165 lb
- Dimensions:55.12 x 35.04 x 16.14 in
- Item weight:39.7 lb
- Material:Waterproof ABS
- Opening:Dual-side
- Mounting:Strap mount; roof-rack compatibility should be checked
- Lock:Security lock with two keys
Our verdict“Choose this box for a rigid, high-load carrier if you can verify its capacity and confirm your roof rack is compatible.”
Sailnovo 20-Cubic-Foot Rooftop Cargo Carrier Bag
The Sailnovo 20-cubic-foot carrier makes the most sense for buyers who need ample roof storage on a trip but do not want a bulky box taking up garage space afterward. It weighs 8.3 pounds and folds into a 10 x 5 x 15-inch storage bag, a clear advantage over the rigid Maxsa Innovations and Thule boxes. Its 1000D Oxford cloth, reinforced seams, and water-resistant coating are designed for travel exposure, but this is not the same construction as the FIVKLEMNZ bag’s stated waterproof welded seams. Fit also depends on the vehicle: it supports several roof setups, yet door-hook installation needs an exposed metal frame, and the listing advises against use on a sunroof-equipped vehicle without a roof basket. The soft shell also provides less impact protection than either hard box.
Pros:- 20-cubic-foot capacity provides room for travel luggage.
- Folds into a compact storage bag when not in use.
- 1000D Oxford cloth and reinforced seams support repeated packing.
- Includes extra luggage straps and six door hooks.
Cons:- Water-resistant coating is not the same as the waterproof construction claimed for the FIVKLEMNZ bag.
- Door-hook mounting requires an exposed metal frame.
- Not recommended for vehicles with a sunroof and no roof basket; may overhang on very small cars.
Best for: Occasional travelers who need generous soft-sided capacity and want a carrier that folds away between trips.
Not ideal for: Owners of cars with a sunroof and no roof basket, or vehicles without an exposed metal door frame when using the included door hooks.
- Brand:Sailnovo
- Capacity:20 cubic feet
- Dimensions:51 x 39 x 17 inches
- Weight:8.3 pounds
- Material:1000D Oxford cloth
- Water resistance:Water resistant
- Folded size:10 x 5 x 15 inches
- Mounting compatibility:Crossbars, side rails, baskets, or exposed metal door frames
- Warranty:1 year
Our verdict“Choose Sailnovo for roomy, stowable soft storage if your roof and door-frame setup match its mounting requirements.”
FIVKLEMNZ 21-Cubic-Foot Waterproof Rooftop Cargo Carrier
The FIVKLEMNZ 21-cubic-foot carrier is the soft-sided choice here for buyers who want a large load area and the listing’s strongest weather-protection claim. Its welded seams and double-layer waterproof cover set it apart from the Sailnovo’s water-resistant coating, while an anti-slip mat, reinforced straps, six door hooks, and a luggage lock come in the package. It is also described as fitting vehicles with or without a roof rack, giving it a different use case from the crossbar-dependent DNA MOTORING box and rack-dependent Thule. The tradeoff is that a soft bag cannot match a hard shell’s impact protection or shape retention. Product details also list both 840D PVC and Oxford cloth, leaving the exact material unclear; buyers who want a defined rigid construction should choose the Maxsa Innovations box instead.
Pros:- 21-cubic-foot capacity is the largest stated volume among these five products.
- Welded seams and a double-layer cover are described as waterproof.
- Includes an anti-slip mat, reinforced straps, six door hooks, a luggage lock, and a storage bag.
- Designed for vehicles with or without a roof rack.
Cons:- Soft-sided construction offers less impact protection than the Maxsa Innovations or DNA MOTORING hard-shell boxes.
- Material details conflict, listing both 840D PVC and Oxford cloth.
- The supplied data does not specify carrier weight or dimensions.
Best for: Travelers seeking a high-capacity soft carrier with stated waterproof seams and included mounting accessories, including those without roof racks.
Not ideal for: Drivers carrying fragile gear that needs a rigid shell, or buyers who require consistent, clearly specified material information.
- Brand:FIVKLEMNZ
- Capacity:21 cubic feet
- Dimensions:52 x 40 x 17 inches
- Weight:4.68 kg
- Material:840D PVC; Oxford cloth also listed in product details
- Water resistance:Waterproof, with welded seams and double-layer cover
- Fit:Designed for vehicles with or without a roof rack
- Included components:Anti-slip mat, reinforced straps, six door hooks, luggage lock, storage bag
- Warranty:12 months
Our verdict“Pick FIVKLEMNZ for large, weather-protected soft storage and broad stated vehicle fit, but choose a hard shell for impact protection.”
Garvee Rooftop Cargo Box Carrier, 12 Cubic Feet, Dual-Side Opening
The Garvee 12-cubic-foot box suits drivers who want a rigid, weather-resistant carrier without taking up as much roof space as the Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box. Its dual-side opening gives access from either side of the car, which helps when a parking spot or roof-rack position makes one side awkward to reach. The ABS shell is described as waterproof and UV-resistant, and the stated 165-pound capacity is generous for a box this size. The tradeoff is storage volume: families carrying several large suitcases may find its 12 cubic feet restrictive compared with the larger Maxsa. It also requires a compatible roof rack, and the listing gives conflicting warranty durations, so buyers should confirm coverage before relying on it.
Pros:- Rigid ABS shell is described as waterproof and UV-resistant
- Dual-side opening offers access from either side of the vehicle
- 165-pound stated maximum load capacity
- Includes two keys and two straps
Cons:- 12-cubic-foot capacity is smaller than the Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box
- Requires a compatible roof rack
- Product information conflicts on whether the warranty lasts one year or 30 days
Best for: Drivers with a roof rack who want a compact hard-shell box for a few bags and value access from either side
Not ideal for: Families packing bulky luggage for a long trip who need more than 12 cubic feet of enclosed space
- Capacity:12 cubic feet (340 L)
- Material:ABS
- Dimensions:54.3 × 31.5 × 13.4 inches
- Weight:36 pounds
- Maximum weight capacity:165 pounds
- Opening:Dual-sided
- Fit:Universal fit for vehicles equipped with a roof rack
- Included accessories:Two keys and two straps
Our verdict“Choose the Garvee if you want a compact, dual-opening hard shell and can confirm both your rack fit and the warranty terms.”
MeeFar Waterproof Rooftop Cargo Bag, 21 Cubic Feet
The MeeFar 21-cubic-foot bag is a practical choice for drivers whose vehicle lacks crossbars: its mounting setup is designed to work with or without a roof rack. The included anti-slip mat, ten reinforced straps, door hooks, and combination lock give buyers the main securing pieces in one package. Its 800D PVC tarpaulin and zipper flap are described as waterproof, while the soft shell can be folded away when it is not carrying luggage. Compared with the hard-shell Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box, MeeFar is easier to store and does not depend on a roof rack, but it takes more care to secure and offers less rigid protection for the contents. Buyers should follow the fit and door-hook instructions for their vehicle.
Pros:- 21 cubic feet of storage
- Designed for vehicles with or without a roof rack
- 800D PVC tarpaulin and a protective zipper flap are described as waterproof
- Includes an anti-slip mat, ten straps, door hooks, and a combination lock
Cons:- Soft construction provides less rigid protection than the Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box
- Requires careful strap and door-hook installation
- The bulky loaded bag can be less convenient to handle than a hard-shell box
Best for: Drivers without crossbars who need high-volume luggage storage for occasional road trips
Not ideal for: Commuters who want a rigid, quick-access carrier or prefer not to secure a load with multiple straps and door hooks
- Capacity:21 cubic feet
- Dimensions:47 × 35 × 22 inches
- Weight:4.88 kg
- Material:800D PVC tarpaulin
- Water resistance:Waterproof material with protective zipper flap
- Mounting:Roof mount; designed for use with or without a roof rack
- Included accessories:Anti-slip mat, 10 reinforced straps, door hooks, combination lock
Our verdict“Pick MeeFar if you need a large, stowable carrier that can attach without crossbars and are comfortable securing a soft load.”
Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag
Among the soft carriers here, the Asinking 21-cubic-foot bag puts the emphasis on reinforced construction: its 840D PVC fabric and reinforced seams are intended to stand up to road-trip handling, and a cover protects the zipper. It includes an anti-slip mat, padded door hooks, a storage bag, extra luggage straps, and a lock. Like the MeeFar 21 Cubic Feet, it offers substantial storage and is designed to fit vehicles with or without roof racks. The choice between them comes down to the package and listed material: MeeFar specifies ten reinforced straps, while Asinking calls out padded hooks and a storage bag, but its strap-count details conflict between the installation description and package list. Since it remains a soft bag, buyers still need to secure it carefully and accept less rigid protection than a hard box.
Pros:- 21 cubic feet of capacity
- 840D PVC construction with reinforced seams
- Designed for vehicles with or without roof racks
- Includes an anti-slip mat, padded door hooks, storage bag, extra straps, and a luggage lock
Cons:- Requires multiple straps and door hooks to secure
- Listing details conflict on strap count
- Soft-shell construction offers less rigid protection than the SportRack Vista XL
Best for: Road-trippers who need a large soft carrier, padded door hooks, and a storage bag for packing it away
Not ideal for: Buyers who want simple, unambiguous strap instructions or the rigid structure of a hard-shell cargo box
- Capacity:21 cubic feet
- Material:840D PVC
- Dimensions:52 × 40 × 18 inches
- Weight:4.24 kg
- Water resistance:Waterproof; reinforced seams and zipper cover
- Mounting and fit:Rooftop; designed for vehicles with or without roof racks
- Closure:Zipper
- Included accessories:Anti-slip mat, six padded door hooks, storage bag, two extra luggage straps, luggage lock
Our verdict“Choose Asinking for reinforced soft-bag construction and useful storage accessories, provided you verify the strap setup before loading.”
SportRack Vista XL Rear-Opening Cargo Box, Black
The SportRack Vista XL makes a strong case for drivers who want a rigid carrier they can reach from behind the vehicle. Its rear-opening design places access away from roadside traffic when parked, unlike the dual-side access on the Garvee Rooftop Cargo Box. At 18 cubic feet, it offers substantially more room than Garvee, while the 100-pound maximum load is lower than Garvee’s stated 165 pounds. Tool-free mounting hardware can simplify installation and removal, and the box includes a lock and key. Fit is the main caveat: compatibility depends on the rack system and crossbar spacing, so the broad listing is not a substitute for checking the fit guide. Its long 63-inch body also needs enough roof space and rear clearance.
Pros:- 18 cubic feet of rigid enclosed storage
- Rear opening keeps access at the back of the vehicle
- Tool-free mounting hardware simplifies installation and removal
- Includes a key and lock
Cons:- 100-pound maximum load is below the Garvee Rooftop Cargo Box’s stated 165-pound capacity
- Rack compatibility and crossbar spacing need to be checked
- 63-inch length may not suit vehicles with limited roof space or rear clearance
Best for: Drivers with compatible crossbars who prioritize rear access and want a rigid, lockable carrier
Not ideal for: Drivers who need a 165-pound load limit, have limited roof length, or cannot verify their rack’s fit
- Capacity:18 cubic feet (510 L)
- Material:UV-resistant ABS plastic
- Dimensions:63 × 38 × 19 inches (160 × 96.5 × 48 cm)
- Maximum weight capacity:100 pounds (45 kg)
- Opening:Rear
- Mounting:Tool-free crossbar mount
- Compatibility:SportRack systems, square bars, round bars, and most factory racks; check fit guide
- Crossbar spacing:23 5/8–29 3/4 inches (60–75.5 cm)
Our verdict“Choose the Vista XL if your rack fits and rear access matters more to you than a higher stated load limit.”
Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box
The Maxsa Innovations 21 cu ft Hard-Shell Rooftop Cargo Box pairs the listed capacity of the large soft bags with the structure of a rigid ABS box. Compared with the Garvee 12-cubic-foot box, it offers nine more cubic feet for bulky trip gear, and its dual-side opening gives access from either side of the vehicle. A waterproof shell, two keys, straps, and installation components make it a feature-rich option for drivers who already have a compatible rack. Its 41.9-pound item weight and 68-inch length call for checking roof limits, clearance, and handling before purchase. The main ownership concern is the listed 30-day manufacturer warranty, which is notably short for a hard-shell carrier; fit also depends on the specific roof-rack setup.
Pros:- 21 cubic feet of hard-shell storage
- Dual-side opening allows access from either side
- Waterproof ABS shell
- Includes a locking system with two keys and straps
Cons:- Listed 30-day manufacturer warranty is short
- At 41.9 pounds and 68.11 inches long, it needs roof-load and clearance checks
- Universal fit listing still requires checking roof-rack compatibility
Best for: Families with compatible roof racks who want large enclosed capacity and access from either side
Not ideal for: Drivers seeking a long warranty, a light carrier, or a compact box for occasional small loads
- Capacity:21 cubic feet
- Dimensions:68.11 × 31.89 × 14.57 inches
- Item weight:41.9 pounds
- Weight capacity:165 pounds
- Material:ABS
- Opening:Dual-side
- Fit:Universal; compatible with many cars and SUVs, with rack compatibility check
- Manufacturer warranty:30 days
Our verdict“Choose Maxsa when you want 21 cubic feet in a dual-opening hard shell and accept the short stated warranty.”
WORKPRO Waterproof Rooftop Cargo Carrier Bag, 21 Cubic Feet
The WORKPRO makes the most sense for drivers who need 21 cubic feet of extra room but don’t have a roof rack: its six door hooks are designed for use on sedans, SUVs, RVs, and wagons. The included anti-slip mat and reinforced straps add useful protection and stability, while reflective strips improve visibility after dark. Compared with the hard-shell Maxsa Innovations 17 cu. ft. Cargo Box, this bag is easier to store when it isn’t carrying gear and offers more listed capacity, but it gives luggage less structure and security. Its 840D PVC and welded, double-stitched construction are intended to resist water, not make poor installation harmless. Follow the instructions carefully: misplaced or overtightened straps can damage the bag and compromise its weather protection.
Pros:- 21-cubic-foot capacity for luggage and outdoor equipment
- Designed for vehicles with or without a luggage rack
- Includes an anti-slip mat, adjustable straps, and six door hooks
- Reflective strips improve visibility
Cons:- Soft sides provide less structure and security than a hard-shell box
- Weather protection can be compromised by damage or severe conditions
- Incorrect strap placement can cause tearing or leaks
Best for: Drivers without roof racks who need substantial, occasional cargo space and want a carrier they can store away between trips.
Not ideal for: People who regularly carry fragile gear, want a lockable hard shell, or need dependable protection through severe weather.
- Capacity:21 cubic feet
- Dimensions:52 × 40 × 17 inches
- Material:840D PVC
- Installation:Six door hooks; no special tools required
- Vehicle compatibility:Sedan, SUV, RV, or wagon; with or without a luggage rack
- Included components:Cargo bag, six safety hooks, two reinforced straps, storage bag, user manual, and anti-slip mat
- Warranty:2 years
Our verdict“Choose the WORKPRO if you need a large, stowable carrier that can attach to a vehicle without roof racks and can accept the installation care a soft bag requires.”
Thule Pulse 2 M Roof-Mounted Cargo Box, 14 cu ft, Dual-Side Opening
The Thule Pulse 2 M is the clearest fit for buyers who value easy access and controlled mounting more than maximum volume. Its 14 cubic feet is less than the Maxsa Innovations 17 cu. ft. Cargo Box or either large soft bag in this group, so it suits everyday luggage and gear better than bulky family loads. The dual-side opening makes loading practical from whichever side is accessible, and the tool-free mounting system’s torque indicator and closure confirmation give buyers visible cues during installation. Its forward roof position is designed to preserve access to the vehicle trunk, a useful advantage when the box stays mounted. The tradeoff is fit dependence: unlike the WORKPRO or MIDABAO bags, this box needs a vehicle roof mounting setup, and its hard shell takes more storage space off the car.
Pros:- Opens from either side of the vehicle
- Tool-free mounting includes a torque indicator and closure confirmation
- Weather-resistant ASA-ABS shell
- Forward positioning is designed to preserve trunk access
Cons:- Requires a vehicle roof mounting setup
- 14-cubic-foot capacity is smaller than the 17- and 21-cubic-foot options
- Hard-shell form is less convenient to store off the vehicle than a soft bag
Best for: Drivers with a compatible roof mounting setup who want a hard-shell box with convenient access from either side and a guided mounting system.
Not ideal for: Drivers without roof mounts or households that need the largest capacity available in this group.
- Volume:400 liters (14 cubic feet)
- Load capacity:75 kg
- Mounting type:Roof mount
- Opening:Dual-side
- Material:ASA-ABS plastic
- Color:Black
- Fit:Universal
- Warranty:Limited lifetime
Our verdict“Pick the Thule Pulse 2 M if compatible roof mounts and convenient, guided hard-shell access matter more to you than maximum cargo volume.”
Maxsa Innovations Hard-Shell Rooftop Cargo Box, 17 cu. ft., 165 lb Capacity
For buyers who want a hard-shell carrier with more room than a compact box, this Maxsa offers 17 cubic feet and a listed 165-pound weight capacity. That puts it between the 14-cubic-foot Thule Pulse 2 M and the 21-cubic-foot WORKPRO bag: it has more capacity than the Thule while keeping a rigid shell, but it won’t match the soft bags for rack-free flexibility. Dual-side opening helps when the vehicle is parked close to a wall or another car, and the two-key locking system adds a layer of security that the soft carriers lack. The ABS shell is described as waterproof, though fit and mounting deserve attention: the box uses straps, and the listing advises checking roof-rack compatibility before purchase. Installation details also depend on the included instructions.
Pros:- 17-cubic-foot capacity with a 165-pound listed weight limit
- Dual-side opening offers access from either side
- Waterproof ABS shell and two-key locking system
- Includes installation straps and components
Cons:- Roof-rack compatibility should be checked before purchase
- Strap-based installation may require careful setup
- Rigid shell is less convenient to store when not mounted
Best for: Drivers with a compatible roof rack who want a roomy hard-shell box, dual-side access, and a locking system for travel gear.
Not ideal for: Drivers without compatible roof-rack mounting or those who need a soft carrier that packs away compactly between trips.
- Storage capacity:17 cubic feet
- Weight capacity:165 lbs
- Material:ABS
- Opening:Dual-side
- Locking system:Includes two keys
- Mounting type:Strap
- Dimensions:55.12 × 35.04 × 16.14 inches
- Item weight:35.3 lbs
Our verdict“Choose this Maxsa if you have a compatible roof rack and want more hard-shell capacity than the Thule Pulse 2 M without moving to a larger soft bag.”
D SOLUTIONS Hard-Shell Rooftop Cargo Carrier, 11 cu ft, Textured Black
The D SOLUTIONS box is a compact hard-shell choice for drivers who want to move some luggage outside the cabin without adding a full-size carrier. Its 11-cubic-foot capacity is notably below the Maxsa Innovations 17 cu. ft. Cargo Box, so it is a better match for a smaller load than a family’s full vacation gear. The ABS shell is listed as waterproof, and a key lock with two keys offers more security than either the WORKPRO or MIDABAO soft bags. A support arm, textured bottom, four mounting brackets, and hardware are included. The main limitation is fit: this model requires crossbars, so it is not a rack-free alternative. At 50.3 pounds, it is also heavier than the 35.3-pound Maxsa, despite having less listed capacity.
Pros:- Waterproof ABS shell
- Key lock with two keys
- Compact 11-cubic-foot cargo capacity
- Includes four mounting brackets and hardware
Cons:- Requires vehicle crossbars
- 50.3-pound weight is substantial for its capacity
- Less storage volume than the 17-cubic-foot Maxsa hard-shell box
Best for: Drivers with crossbars who need a compact, lockable hard-shell carrier for a modest amount of weather-protected cargo.
Not ideal for: Drivers without crossbars, buyers carrying bulky loads, or anyone prioritizing a lighter box for occasional mounting.
- Capacity:11 cubic feet
- Dimensions:53 × 34 × 15 inches
- Material:ABS plastic
- Load capacity:110 lbs
- Weight:50.3 lbs
- Water resistance:Waterproof
- Mounting type:Roof mount; requires crossbars
- Included components:Cargo box, two keys, four mounting brackets, and mounting hardware
Our verdict“Pick the D SOLUTIONS if your vehicle has crossbars and you prefer a compact, lockable hard shell over the greater capacity of the Maxsa Innovations box.”
MIDABAO 20-Cubic-Foot Waterproof Car Roof Cargo Carrier
The MIDABAO is a practical pick for buyers who want near-21-cubic-foot capacity in a soft carrier that can fit vehicles with or without roof racks. Its 20 cubic feet sits just below the WORKPRO’s 21, while the PVC-coated material, coated zipper, six short straps, and two long straps give buyers several pieces of included securing equipment. An anti-slip mat and storage bag round out the kit, making it easier to stow once the trip is over. Compared with the hard-shell Maxsa Innovations 17 cu. ft. Cargo Box, the MIDABAO is more flexible about vehicle setup and takes less storage space off the roof, but it lacks a rigid, lockable enclosure. Water protection also depends on closing the zipper and securing the bag properly, so it is not the stronger choice for fragile cargo or careless installation.
Pros:- 20-cubic-foot capacity for luggage and gear
- Fits vehicles with or without roof racks
- PVC-coated material and coated zipper
- Includes multiple straps, an anti-slip mat, and a storage bag
Cons:- Soft-sided construction offers less structure than a hard-shell box
- Water resistance depends on secure closure and installation
- No hard-shell locking system is listed
Best for: Drivers who need a large, packable carrier for different vehicles, including cars without roof racks, and can secure a soft bag carefully.
Not ideal for: Buyers who need a lockable hard shell, rigid protection for fragile belongings, or weather protection that does not depend on careful closure and setup.
- Capacity:20 cubic feet
- Dimensions:51.1 × 39 × 17 inches
- Weight:3.94 kg
- Material:PVC and nylon
- Water resistance:Waterproof
- Mounting type:Roof mount
- Fit:Universal; with or without roof racks
- Included accessories:Anti-slip mat, six short straps, two long straps, and storage bag
Our verdict“Choose the MIDABAO if you want a high-capacity bag that can move between rack-equipped and rack-free vehicles and prefer packability over rigid security.”
How We Picked
I ranked these options by how clearly their design matches common roof-cargo needs: rigid versus soft construction, stated storage volume, access direction, listed load capacity, and the practical demands of installation and upkeep. I also considered whether a product’s stated features help a buyer distinguish it from close alternatives, such as a rear-opening box versus a dual-side-opening one, or a smaller shell versus a large flexible bag.
The order favors choices with a useful balance of capacity, access, and clearly described function, then separates them by the kind of buyer they suit. A higher position does not mean one model fits every vehicle: roof limits, crossbar spacing, hatch clearance, and the carrier’s mounting system can change the decision. Where the supplied product information does not specify a detail, I treat it as something to verify rather than assume.
| car roof cargo boxe | Water resistance |
|---|---|
| DNA MOTORING Lockable Rooftop | Not water resistant |
| Thule Force 3 XL Rooftop Cargo | Water resistant |
| Maxsa Innovations Hard-Shell R | — |
| Sailnovo 20-Cubic-Foot Rooftop | Water resistant |
| FIVKLEMNZ 21-Cubic-Foot Waterp | Waterproof, with welded seams and double-layer cover |
| Garvee Rooftop Cargo Box Carri | — |
| MeeFar Waterproof Rooftop Carg | Waterproof material with protective zipper flap |
| Asinking 21-Cubic-Foot Waterpr | Waterproof; reinforced seams and zipper cover |
| SportRack Vista XL Rear-Openin | — |
| Maxsa Innovations 21 cu ft Har | — |
| WORKPRO Waterproof Rooftop Car | — |
| Thule Pulse 2 M Roof-Mounted C | — |
| Maxsa Innovations Hard-Shell R | — |
| D SOLUTIONS Hard-Shell Rooftop | Waterproof |
| MIDABAO 20-Cubic-Foot Waterpro | Waterproof |
Factors to Consider When Choosing Car Roof Cargo Boxes
Before choosing among car roof cargo boxes, I’d start with the vehicle and the kind of cargo, not the biggest capacity number. These broader checks can prevent a box or bag from being awkward to mount, difficult to load, or unsuitable for the roof.
Match the carrier to your roof and rack
Check the vehicle manual for its maximum roof load, then account for the weight of the rack and carrier before adding cargo. A box’s stated capacity does not override either the vehicle limit or the rack’s limit; the lowest figure controls. Confirm that your crossbars are compatible with the mounting hardware and spaced within the carrier’s permitted range. Also check the roof’s usable length and width, including any antenna, sunroof, or raised rails. A large carrier can fit the rack yet interfere with a liftgate or extend too far forward. If fit details are unclear, verify them with the maker before buying rather than relying on volume alone.
Choose volume for the shape of your gear
Cubic-foot capacity is useful for comparing broad storage scale, but it cannot tell you whether skis, a stroller, or bulky camping equipment will fit. Measure long items and compare them with the carrier’s internal dimensions, not just its exterior size. Soft bags can conform around irregular loads, while rigid boxes may provide a more defined enclosure but limit the shapes that can pass through their opening. Avoid filling a carrier so tightly that the closure cannot seal or the load cannot be secured. For ordinary luggage, a smaller carrier may be easier to handle and may create less bulk on the roof. Pick based on the largest item you actually need to transport, not a hypothetical maximum load.
Think through access before mounting
Opening direction matters most when the box sits high, the vehicle is parked beside a wall, or the rear hatch rises close to the carrier. A rear-opening design can make loading from behind more convenient, while dual-side access can help when one side of the vehicle is blocked. Neither arrangement automatically provides comfortable reach for every driver, especially on a tall SUV. Check whether the carrier’s position will obstruct the hatch and whether you can reach the far side safely from the ground. Plan where the box will sit before tightening the mounts, since moving it later can mean unloading and reinstalling it. For frequent stops, access convenience may matter more than a small increase in capacity.
Weigh rigid protection against soft-bag flexibility
A hard shell keeps its shape when empty and gives cargo a structured enclosure, but it takes up storage space when removed and can be more cumbersome to handle. A soft carrier can fold away more easily and accommodate flexible loads, yet it relies on careful packing, secure attachment, and proper drying after wet trips. Waterproof claims do not remove the need to close every flap or protect sensitive items inside. Before using a bag, inspect its straps and roof contact points, and follow the maker’s directions about whether a compatible rack is required. If your trips include frequent weather exposure or repeated loading, compare care and closure details rather than treating “waterproof” as a complete guarantee.
Treat attachment and cargo restraint as separate jobs
The carrier must be secured to the vehicle, and the cargo must be restrained inside it; a good result depends on both. Check what mounting hardware is included and whether it works with your rack, since attachment systems are not interchangeable by default. Keep heavy items low and distribute weight evenly instead of concentrating it at one end. Close and lock a hard box only after confirming nothing presses against the lid or latch. For a soft bag, tighten the straps as directed and recheck them after the initial part of a trip. Follow the product instructions and local rules, and do not assume a lock or weather-resistant material makes an inadequately secured load safe.
Plan for storage, upkeep, and how often you’ll use it
A carrier used once a year has different practical costs than one left on the vehicle through a season. A rigid box needs a place to sit when removed, and its size can make garage storage difficult. A soft bag folds down, but it should be cleaned and fully dried before storage to reduce the chance of lingering moisture or odors. Frequent use also makes opening hardware, straps, and mounting points more important than a headline capacity figure. If you expect regular long trips, favor a design you can load and secure consistently; occasional users may value compact storage more. Think about who will install and lift the carrier, since a product that is awkward to handle can discourage the trips it was meant to support.
Frequently Asked Questions
Can I use a 20- or 21-cubic-foot carrier on a compact car?
Possibly, but the volume number alone cannot answer that. Check the compact car’s roof-load limit, rack compatibility, available bar spacing, and the carrier’s dimensions before buying. A large bag may be flexible, but its size can still affect hatch access, visibility, and how cargo sits on the roof. Include the weight of the rack and carrier when calculating the load. If any fit measurement or limit is missing, confirm it with the vehicle and carrier makers before loading the roof.
Is a waterproof rooftop bag as suitable as a hard-shell box for a rainy road trip?
They are not automatically equivalent. The listed bags claim waterproof construction, but their real-world protection also depends on correct closure, sound seams, secure attachment, and how the bag is packed. A rigid box provides a structured enclosure, while a soft carrier can fold away and adapt to different loads. For electronics, documents, or other moisture-sensitive cargo, use an additional sealed inner bag regardless of the carrier type. Check care instructions and inspect closures before each trip, especially after storage.
Should I choose the rear-opening SportRack Vista XL or a dual-side-opening box?
Choose based on where you will load and park most often. The Vista XL’s rear opening may suit a driveway or parking space where you can reach the carrier from behind, while a dual-side design such as the Garvee or Thule Pulse 2 M can offer access from either side. Check whether the carrier could obstruct the liftgate and whether you can reach its opening comfortably. Side access can be helpful when one side is blocked, but it does not guarantee easy reach across a wide vehicle. Compare access with your usual parking setup, not just the feature label.
Does a 165-pound box capacity mean I can carry 165 pounds on my roof?
No. The Maxsa 17- and 19.4-cubic-foot models list a 165-pound capacity, but that figure is not permission to exceed the vehicle or roof-rack limit. Subtract the carrier and rack weight from the vehicle’s stated roof-load allowance, and follow any lower limit supplied for the box or rack. Distribute cargo evenly and secure it as directed. Dynamic driving loads can also differ from a parked vehicle’s static load, so follow the vehicle maker’s guidance for travel.
Is a smaller 11- or 14-cubic-foot hard box a better choice than a 21-cubic-foot bag?
It can be, if your usual load is modest and you value a rigid enclosure over extra flexible volume. The DNA MOTORING and D SOLUTIONS listings are 11 cubic feet, while the Thule Pulse 2 M is listed at 14 cubic feet; these sizes may be easier to match to a smaller load than a large bag. A 21-cubic-foot carrier gives more stated space, but only helps if it fits the roof and can be secured without exceeding load limits. Compare the dimensions of your gear, the carrier’s access, and where you will store it when not in use. The best choice is the smallest option that safely accommodates the items you regularly carry.
Conclusion
For an all-around hard-shell choice, I’d start with the Thule Force 3 XL; it leads this lineup as the best overall pick for buyers who want a rigid box from a dedicated cargo-box line. The Maxsa Innovations 21 cu ft hard-shell box is my value-oriented option for shoppers prioritizing substantial stated capacity, while the Thule Force 3 XL is also the premium direction for those seeking a hard-shell model rather than a flexible bag. For beginners, I’d favor a carrier whose mounting and opening arrangements clearly match the vehicle and whose size is manageable; the Thule Pulse 2 M is a sensible smaller-box starting point, subject to a fit check. If easy storage when removed is the priority, compare the soft carriers from Sailnovo, FIVKLEMNZ, MeeFar, Asinking, WORKPRO, and MIDABAO. For rear access, look at the SportRack Vista XL; for dual-side access, compare the Garvee and Thule Pulse 2 M. Before deciding, verify roof limits, rack fit, dimensions, and hatch clearance—those details can matter more than the largest capacity claim.
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