Best Roof Mount Roof Cargo Boxes in 2026: 15 Picks Ranked by Specs
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This guide ranks the best roof mount roof cargo boxes by published specifications. We compared 15 options to help you find the right fit. The MeeFar 15 cu ft Roof Bag leads because it offers 100% waterproof protection in a compact 15 cubic foot soft shell. Our picks are based strictly on specs like capacity, weight, and dimensions found on the listings. Use this list to decide whether you need a soft bag for a bare roof or a hard shell for maximum security.
Quick picks
The best fit for you
- You want the best overall roof cargo box MeeFar 15 cu ft Roof Bag It is the top pick with 15 cu ft capacity and waterproof design.
- You need maximum cargo capacity in a soft bag FIVKLEMNZ 30 Cubic Feet Roof Bag It offers the largest capacity on the list at 30 cubic feet.
- You need dual-side access for easy loading GarveeTech 14 cu ft Dual-Side Opening Roof Box It provides dual-side opening and waterproof hard-shell construction.
Our 15 picks
MeeFar 15 cu ft Roof Bag
Best for: budget-conscious shoppers needing waterproof, stowable roof storage
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 15 cubic feet
- Shell Type
- 700D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- combination lock
- Installation
- quickly and easily installed in minutes
The MeeFar roof bag is a soft-shell cargo carrier with 15 cubic feet of storage space. It is made from 700D PVC tarpaulin and is rated 100% waterproof. The bag works with cars that have or lack a roof rack, and it folds into a storage box when not in use. It suits you if you need a simple, affordable way to add cargo capacity without a permanent hard shell.
Pros
- 100% waterproof 700D PVC tarpaulin construction
- Works with or without a roof rack
- Includes anti-slip mat, security hooks, and combination lock
- Folds into included storage box when not in use
Cons
- Soft shell offers less security and aerodynamic shape than a hard box
- 15 cubic feet capacity is smaller than many hard-shell options on this list
- No dual-side opening or built-in locking mechanism beyond the zipper lock
Good fit if
- You want a waterproof cargo bag that can be stored flat when not needed
- You have a car without a roof rack and need a universal solution
- You prioritize low weight and easy installation over rigid protection
Skip if
- You need a hard-shell box for secure, lockable storage
- You require more than 15 cubic feet of cargo capacity
Verdict: MeeFar 15 Cubic Feet Waterproof Roof Bag is a practical soft-shell roof bag that delivers 100% waterproof protection and universal fit at a low entry point, but its 15 cubic foot capacity and soft construction limit it compared to hard-shell boxes.
FIVKLEMNZ 30 Cubic Feet Roof Bag
Best for: maximum capacity in a waterproof roof bag
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 30 Cubic Feet
- Shell Type
- 840D PVC
- Water Resistance
- 100% Waterproof
- Installation
- 10 reinforced straps, 6 door hooks
- Dimensions
- 60 x 43 x 20 inches
The FIVKLEMNZ 30 Cubic Feet Rooftop Cargo Carrier is a soft-sided roof bag made from 840D PVC with welded seams and a double-layered waterproof cover. It offers 30 cubic feet of storage (60 x 43 x 20 inches) and secures with 10 reinforced straps and 6 door hooks. It fits vehicles with or without a roof rack and includes an anti-slip mat and luggage lock. This bag suits drivers who need a large, waterproof cargo solution for road trips and family vacations.
Pros
- 30 cubic feet capacity, the largest on this list
- 100% waterproof with 840D PVC and high-frequency welded seams
- Works with any vehicle, with or without a roof rack
- Includes 10 reinforced straps, 6 door hooks, anti-slip mat, and luggage lock
Cons
- Soft-sided bag lacks the hard-shell security of a cargo box
- No dual-side opening; access is limited from one side
- No remote or locking mechanism beyond the included luggage lock
Good fit if
- You need maximum cargo volume in a soft roof bag
- You want a waterproof carrier that installs quickly without a roof rack
- You carry bulky items like tents and sleeping bags for family trips
Skip if
- You prefer a hard-shell cargo box for added security and aerodynamics
- You need dual-side opening for easier access from either side of the vehicle
- You want a smaller, lighter bag for a compact car
Verdict: FIVKLEMNZ 30 Cubic Feet Waterproof Roof Bag is a large, fully waterproof soft cargo bag that offers the most storage space on this list, making it a practical choice for drivers who need to carry bulky gear without a roof rack.
Sailnovo 21 cu ft Soft Roof Bag
Best for: budget-friendly waterproof soft shell cargo
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 21 cubic feet
- Shell Type
- Soft Shell
- Water Resistance
- Waterproof
- Installation
- Tie-Down Strap
- Dimensions
- 9.84 x 7.09 x 13.8 in
The Sailnovo Car Rooftop Cargo Carrier Roof Bag is a soft shell cargo bag with 21 cubic feet of capacity. It measures 9.84 x 7.09 x 13.8 inches and weighs 8.16 pounds. Installation uses tie-down straps. It is waterproof. This bag suits drivers who want a lightweight, collapsible cargo option without the cost or bulk of a hard shell box.
Pros
- 21 cubic feet capacity offers ample space for luggage
- Waterproof construction protects contents from rain
- Lightweight at 8.16 pounds for easy handling and storage
- Soft shell design collapses when not in use
Cons
- No integrated locking mechanism for security
- Tie-down strap installation may be less stable than a hard shell mount
- Dimensions are compact (9.84 x 7.09 x 13.8 inches) limiting long items
Good fit if
- You want a low-cost, lightweight cargo carrier for occasional trips
- You have a car without a roof rack and need a bag that ties directly to the roof
- You prefer a collapsible bag that stores easily when not in use
Skip if
- You need a hard shell for maximum security and aerodynamics
- You plan to carry heavy or bulky items that require a rigid structure
- You want a carrier with built-in locks or dual-side opening
Verdict: Sailnovo 21 cu ft Soft Shell Roof Bag is a practical, waterproof soft shell cargo bag with 21 cubic feet of capacity and a lightweight design, best for budget-conscious drivers who need occasional extra storage.
RoofPax 19 cu ft Polyester Roof Bag
Best for: shoppers wanting a waterproof soft bag for any car
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 19 Cubic feet
- Shell Type
- polyester
- Water Resistance
- 100% waterproof
- Installation
- door hook straps, 10 straps
- Vehicle Compatibility
- fits cars with or without roof rack
The RoofPax 19 Cubic Feet Rooftop Cargo Carrier Bag is a soft-sided roof bag made from 100% waterproof polyester. It offers 19 cubic feet of capacity and measures 47.2 by 35.4 by 19.8 inches. The bag installs using door hook straps and 10 included straps, and it fits vehicles with or without a roof rack. It suits you if you want a waterproof, soft cargo bag that works on almost any car.
Pros
- 100% waterproof polyester shell with double-seam technology
- 19 cubic feet capacity with dimensions 47.2 x 35.4 x 19.8 in
- Installs with 4 patented door hook straps plus 10 additional straps
- Compatible with cars that have or lack a roof rack
- Available in 5 size options including 15, 19, 23, and 28 cubic feet
Cons
- Soft bag lacks the hard-shell security and aerodynamics of a rigid cargo box
- No built-in lock or locking mechanism listed
- Requires routing and tightening multiple straps for secure installation
Good fit if
- You need a waterproof cargo bag that fits cars with or without roof racks
- You want a soft-sided carrier with multiple size options to choose from
- You prefer polyester material over PVC for durability
Skip if
- You want a hard-shell cargo box with integrated locks
- You need a roof box that opens from both sides
- You prefer a carrier with a lower profile for better aerodynamics
Verdict: RoofPax 19 cu ft Cargo Bag is a practical, waterproof soft cargo bag that installs on almost any vehicle, offering good capacity and multiple size choices, though it lacks the security and convenience of a hard-shell box.
Asinking 20 cu ft Waterproof Roof Bag
Best for: budget-friendly waterproof roof bag travel
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 20 cu ft
- Shell Type
- 900D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- Lock
- Installation
- Metal ring strap design
The Asinking Car Rooftop Cargo Carrier Bag is a 20-cubic-foot soft roof bag made from 900D PVC tarpaulin. It is designed to be 100% waterproof with triple-reinforced seams and a double-flap zipper cover. This bag fits any car with or without a roof rack, installs with a metal ring strap system, and includes a lock for security. It suits budget-conscious travelers who need a durable, weatherproof cargo solution.
Pros
- 100% waterproof 900D PVC tarpaulin with triple-reinforced seams
- 20 cu ft capacity (52 x 40 x 12-18.5 in)
- Lockable for added security
- Fits any vehicle, with or without roof rack or sunroof
- Aerodynamic shape designed for quiet, fuel-efficient travel
Cons
- Soft bag lacks the rigid protection of a hard-shell box
- No dual-side opening; access limited to one side
- Height varies from 12 to 18.5 inches, which may reduce usable space at lower settings
Good fit if
- You want a budget-friendly, waterproof roof bag for occasional road trips
- You drive a car without a roof rack and need a strap-mounted solution
- You need a foldable cargo carrier that stores easily when not in use
Skip if
- You prefer the security and durability of a hard-shell roof box
- You need dual-side opening for easier loading
- You require a fixed, uniform height for stacking gear
Verdict: Asinking 20 cu ft Roof Bag is a practical, waterproof soft bag that offers good value for budget-minded travelers who need a lockable, rack-free cargo solution.
HubPax 15 Cu Ft Roof Basket & Bag Set
Best for: Dual storage needs with existing crossbars
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 15 cu ft
- Shell Type
- soft shell
- Load Capacity
- 200 lbs
- Water Resistance
- waterproof
- Installation
- U-bolt installation
This HubPax set combines a 51-inch roof basket with a 15 cubic foot waterproof soft shell bag. The basket supports a 200-pound load and mounts via U-bolts to existing crossbars. The included bag measures 44 by 34 inches and protects gear from rain and dust. It is designed for smaller vehicles needing versatile roof storage for camping or travel.
Pros
- Includes both a hard basket and a soft waterproof bag
- 200-pound load capacity for the basket
- Waterproof soft shell protects cargo from elements
- U-bolt installation fits most crossbars
Cons
- 15 cubic foot bag is smaller than many competitors
- Soft shell offers less aerodynamic efficiency than hard shells
- Basket requires separate crossbars for installation
Good fit if
- You need extra storage for both bulky and weather-sensitive items
- You have a smaller vehicle with existing crossbars
- You want a versatile set for camping or road trips
Skip if
- You require a large capacity over 20 cubic feet
- You prefer a single integrated hard shell unit
- You do not have roof crossbars installed
Verdict: HubPax 15 Cu Ft Roof Basket & Bag is a practical dual-purpose solution for drivers who need to carry both large gear and weather-sensitive items. It suits those with crossbars who value the flexibility of using a basket and a bag together.
Thule Pulse 2 L 16 cu ft Dual-Side Box
Best for: commuters needing durable dual-side access
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 16 Cubic Ft
- Shell Type
- ASA-ABS plastic
- Opening
- Dual-side
- Load Capacity
- 75 kg
- Installation
- Tool-free
The Thule Pulse 2 L is a dual-side opening roof box with 16 cubic feet of capacity and a 75 kg load limit. Its streamlined ASA-ABS plastic shell resists sun and scratches. This box suits commuters and weekend travelers who need secure, tool-free installation and easy access from either side of the vehicle.
Pros
- Dual-side opening for convenient access from either side of the vehicle
- Tool-free installation with a torque indicator that clicks when safely attached
- 75 kg (165 lb) load capacity for luggage, gear, skis, and snowboards
- Hardwearing ASA-ABS plastic resists sun, scratches, and weather
- Full trunk access with minimal risk of contact with the cargo box
Cons
- At 16 cubic feet, capacity is smaller than some large roof boxes on this list
- No integrated locking system listed in the specs; locks may be sold separately
- Available in only one color (black) with no additional finish options
Good fit if
- You want a durable, weather-resistant roof box for daily commuting and weekend trips
- You need to load and unload gear from either side of your vehicle
- You prefer a tool-free mounting system with a clear safety indicator
Skip if
- You need maximum cargo capacity above 16 cubic feet for bulky items
- You require a roof box with built-in locks included from the factory
- You want a box with a lower profile or shorter height for tight garages
Verdict: Thule Pulse 2 L Roof Mounted Box is a practical, durable choice for commuters and weekend travelers who value dual-side access and tool-free installation, though its 16-cubic-foot capacity is smaller than some larger options on this list.
Thule Motion 3 XXL Roof Box
Best for: large loads with secure locking and easy mounting
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 21 Cubic Feet
- Security
- SlideLock system
- Installation
- PowerClick quick-mount system
- Dimensions
- 95 x 40 x 20 inches
- Weight
- 77 pounds
The Thule Motion 3 XXL is a hard-shell roof box with 21 cubic feet of capacity. It measures 95 by 40 by 20 inches and weighs 77 pounds. The PowerClick quick-mount system uses a torque indicator that clicks when properly installed. The SlideLock system automatically locks the lid and shows when the box is securely closed. This box suits drivers who want a large, secure cargo box with reduced drag.
Pros
- 21 cubic feet capacity for large loads
- PowerClick quick-mount system with torque indicator for secure installation
- SlideLock system automatically locks lid and shows secure closure
- Wing-shaped profile reduces drag and improves fuel efficiency
- Wide handle allows one-handed opening and closing
Cons
- No interior light included (available as accessory)
- Heavier than many soft carriers at 77 pounds
- Requires roof rack crossbars for mounting
Good fit if
- You need a large, hard-shell box with 21 cubic feet of storage
- You want a secure locking system that confirms the box is closed
- You prefer a quick-mount system with a torque indicator
Skip if
- You need a lightweight or soft cargo carrier
- You want a box with an integrated interior light
- You have a limited budget for a roof cargo box
Verdict: Thule Motion 3 XXL Roof Box is a premium large-capacity hard-shell roof box with a secure SlideLock system and easy PowerClick mounting, best for drivers who prioritize security and aerodynamic efficiency.
Maxsa Innovations 17 cu ft Hard Shell Cargo Box
Best for: secure, weather-protected moderate loads
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 17 cu ft
- Shell Type
- Hard shell
- Load Capacity
- 165 lbs
- Vehicle Compatibility
- Fits a wide range of cars and SUVs
- Recommended Use
- Travel essentials, luggage, outdoor gear
View on Amazon: Maxsa Innovations 17 cu ft Hard Shell Cargo Box
This Maxsa Innovations roof box offers 17 cubic feet of hard shell storage with a 165 lbs load capacity. Its aerodynamic design reduces wind noise and improves fuel efficiency. The unit measures 55.1 inches long and weighs 35.3 pounds. It includes a secure locking system with two keys. You will appreciate this carrier if you need durable, weather-resistant storage for weekend trips or family luggage.
Pros
- Hard shell construction protects gear from weather
- 165 lbs load capacity for heavy items
- Aerodynamic shape reduces wind resistance and noise
- Includes locking system with two keys
Cons
- 17 cubic feet capacity is smaller than many soft bag competitors
- Single-side opening limits access compared to dual-side models
- Weight of 35.3 pounds makes installation more difficult
Good fit if
- You prioritize durable hard shell protection over maximum volume
- You need a secure locking system with included keys
- You drive a car or SUV with compatible roof racks
Skip if
- You require more than 17 cubic feet of storage space
- You prefer lightweight carriers for easier manual installation
- You need dual-side opening for convenient access
Verdict: Maxsa Innovations 17 Cu Ft Hard Shell is a secure, aerodynamic option for buyers who value durability and theft protection over high volume. It suits those carrying moderate loads who prefer a rigid shell.
GarveeTech 14 cu ft Dual-Side Opening Roof Box
Best for: drivers needing a waterproof hard-shell box with dual-side access
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 14 cu ft
- Shell Type
- ABS
- Opening
- dual-side
- Load Capacity
- 165 lbs
- Water Resistance
- waterproof
View on Amazon: GarveeTech 14 cu ft Dual-Side Opening Roof Box
The GarveeTech Rooftop Cargo Box is a hard-shell ABS carrier with a dual-side opening for easy access from either side of your vehicle. It offers 14 cubic feet of storage, a 165-pound load capacity, and measures 62.2 x 31.5 x 13.4 inches. It fits any vehicle with a roof rack and includes two keys and two straps for security. This box suits drivers who want a durable, waterproof cargo box with convenient loading.
Pros
- Dual-side opening for access from either side of the vehicle
- 14 cu ft capacity with a 165 lb load limit
- Waterproof and UV-resistant ABS hard shell
- Universal fit for any vehicle with a roof rack
- Includes 2 keys and 2 straps for added security
Cons
- Heavier than some comparable boxes at 44.8 pounds
- No integrated locking system beyond the included keys and straps
- Only one height option (13.4 inches) limits fit for taller items
Good fit if
- You want a hard-shell cargo box with easy access from both sides of the car
- You need a waterproof, UV-resistant box for road trips in varied weather
- You have a vehicle with a roof rack and want a universal-fit cargo carrier
Skip if
- You need a lighter cargo box for frequent mounting and removal
- You require a built-in locking mechanism rather than separate keys and straps
- You need more than 14 cubic feet of storage capacity
Verdict: GarveeTech 14 cu ft Dual-Side Opening Cargo Box is a solid choice for drivers who want a durable, waterproof hard-shell box with dual-side access, though its weight and basic security setup may not suit everyone.
Mockins 30 Cu Ft Navy Blue Soft Shell Roof Bag
Best for: Bare roof vehicles needing high volume storage
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 30 cubic ft
- Dimensions
- 60"x43"x20"
- Shell Type
- Soft Shell
- Weight
- 12.4 pounds
View on Amazon: Mockins 30 Cu Ft Navy Blue Soft Shell Roof Bag
This Mockins soft shell carrier offers 30 cubic feet of storage in a 60 by 43 by 20 inch footprint. It weighs 12.4 pounds and mounts to crossbars, side rails, or bare roofs using included door hooks. The 840D vinyl shell features welded seams and a waterproof zipper. You get ample space for bulky loads while maintaining a low profile to reduce wind drag.
Pros
- 30 cubic feet capacity for large loads
- 840D vinyl shell with welded seams
- Mounts to bare roofs via door hooks
- Aerodynamic 60 inch length minimizes wind drag
Cons
- Soft shell offers less protection than hard plastic
- No dual-side opening for easier access
- Requires manual strapping and hook installation
Good fit if
- You need maximum cargo volume for a trip
- Your vehicle lacks roof rails or crossbars
- You want a low-profile bag to reduce wind noise
Skip if
- You prefer the security of a hard shell
- You need quick access to items from the side
- You want a rigid box for high-speed highway travel
Verdict: Mockins 30 Cu Ft Soft Shell Roof Bag provides high volume storage for vehicles without racks. It suits travelers prioritizing capacity and bare-roof compatibility over rigid protection.
BagMate 23 cu ft Roof Bag – 840D PVC
Best for: drivers who want a large waterproof bag without a roof rack
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 23 cu ft
- Shell Type
- 840D PVC
- Water Resistance
- 100% waterproof
- Dimensions
- 55" L x 44.9" W x 19.5" H
- Vehicle Type
- Car, SUV
The BagMate 23 cu ft Roof Bag is a soft-shell cargo carrier that gives you 23 cubic feet of storage space, enough for up to 8 medium suitcases. It is made from military-grade 840D PVC fabric with heat-welded seams and is certified 100% waterproof. This bag installs on any car or SUV with or without a roof rack using included door hooks and straps.
Pros
- 23 cu ft capacity fits up to 8 medium suitcases
- 100% waterproof with triple-seal design and 840D PVC fabric
- Aerodynamically tested for stability at highway speeds
- Includes protective roof mat, 10 straps, and 4 door hooks
- No roof rack required for installation
Cons
- Soft-shell bag offers less security than a hard-shell box
- No built-in locking mechanism listed
- Assembly of straps and hooks needed before each trip
Good fit if
- You need a large, waterproof cargo carrier that works on any vehicle
- You want a budget-friendly soft bag that stores flat when not in use
- You prefer a no-rack installation with door hooks
Skip if
- You want a hard-shell box with integrated locks for security
- You need a carrier that opens from both sides
- You plan to leave the carrier on your roof for long periods
Verdict: BagMate 23 cu ft Roof Bag is a practical, waterproof soft-shell cargo carrier with a large 23 cu ft capacity and universal no-rack installation, ideal for occasional trips.
SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo
Best for: Jeep owners needing branded soft storage
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 20 Cu Ft
- Shell Type
- PVC
- Water Resistance
- 100% Waterproof
- Security
- Combination lock
- Installation
- Straps and hooks, anti-slip mat
View on Amazon: SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo
This soft-shell cargo bag offers 20 cubic feet of storage. It measures 44 by 34 by 17 inches. The PVC shell is 100% waterproof with welded seams. It includes a combination lock and straps. The 8.8-pound weight makes it manageable. It suits Jeep owners needing extra roof space for gear.
Pros
- 20 cubic feet capacity
- 100% waterproof PVC construction
- Includes combination lock
- Fits vehicles with or without racks
Cons
- Soft shell offers less impact protection than hard boxes
- No dual-side opening access
- Limited to one height variation
Good fit if
- You own a Jeep and want a branded accessory
- You need 20 cubic feet of waterproof storage
- You prefer a lightweight soft-shell carrier
Skip if
- You require hard-shell durability for heavy loads
- You need dual-side opening for easy access
- You want a rigid box for aerodynamic efficiency
Verdict: SR1 Performance 20 Cu Ft Jeep Roof Bag provides reliable waterproof storage for Jeep owners. It fits buyers who prioritize brand identity and soft-shell flexibility over hard-shell protection.
Mockins XXL 50 Cu Ft Roof Bag
Best for: Large cargo loads without roof racks
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 50 cu ft
- Shell Type
- Soft-shell
- Water Resistance
- Waterproof
- Vehicle Compatibility
- No roof rack needed
- Dimensions
- 85 x 50 x 20 in
The Mockins XXL 50 Cu Ft soft roof bag offers 50 cubic feet of storage in a 85 x 50 x 20 inch package. It weighs 19 pounds and features waterproof 840D vinyl with heat-welded seams. You can mount it directly to your vehicle without a roof rack using the included straps and hooks. This bag suits large families or those moving heavy gear who need maximum volume.
Pros
- 50 cubic feet capacity for extensive cargo
- 85-inch length accommodates long items
- No roof rack required for installation
- Waterproof 840D vinyl with heat-welded seams
Cons
- Soft-shell design offers less weather protection than hard shells
- 85-inch length may overhang smaller vehicles
- 19-pound weight adds significant load to vehicle
Good fit if
- You need to transport a large volume of gear
- Your vehicle lacks a roof rack system
- You are carrying long items like tents or pipes
Skip if
- You prefer a hard-shell for better security
- You drive a compact car with limited roof space
- You want a streamlined profile for highway aerodynamics
Verdict: Mockins XXL 50 Cu Ft Soft Roof Bag provides massive storage for those without roof racks, but its soft construction and large footprint limit its use on smaller cars.
Yakima SkyBox NX 16 LG
Best for: shoppers who want a dual-sided lockable hard-shell roof box
- Mount Type
- Roof Mount (what this guide is about)
- Capacity
- 18 cu ft
- Opening
- dual-sided
- Security
- SKS lock
- Dimensions
- 75.5 x 35 x 16 in
- Lockable
- Lockable
The Yakima SkyBox NX 16 LG is a dual-sided hard-shell roof box with 18 cu ft of capacity and a 75.5 x 35 x 16-inch footprint. It uses an SKS lock to secure the lid and the box to your roof. The flat, unobstructed floor makes the interior easier to pack.
Pros
- Dual-sided opening lets you load from either side
- SKS lock secures the lid and the box to the roof
- Flat, unobstructed floor maximizes usable space
- Fits snowboards and skis up to 175 cm
Cons
- At 46 pounds, it is heavier than soft cargo carriers
- 16-inch height may be too tall for some garages
Good fit if
- You want a hard-shell box with access from both sides
- You carry snowboards or skis up to 175 cm
- You want a lockable box that mounts on your roof
Skip if
- You need more than 18 cu ft of cargo capacity
- You prefer a lighter soft-shell carrier
- You need to park in a low-clearance garage
Verdict: Yakima SkyBox NX 16 LG is a dual-sided, lockable roof box with 18 cu ft of capacity, a flat interior floor, and a 75.5 x 35 x 16-inch footprint.
Specifications side by side
| Spec | MeeFar 15 cu ft Roof Bag | FIVKLEMNZ 30 Cubic Feet Roof Bag | Sailnovo 21 cu ft Soft Roof Bag | RoofPax 19 cu ft Polyester Roof Bag | Asinking 20 cu ft Waterproof Roof Bag | HubPax 15 Cu Ft Roof Basket & Bag Set | Thule Pulse 2 L 16 cu ft Dual-Side Box | Thule Motion 3 XXL Roof Box | Maxsa Innovations 17 cu ft Hard Shell Cargo Box | GarveeTech 14 cu ft Dual-Side Opening Roof Box | Mockins 30 Cu Ft Navy Blue Soft Shell Roof Bag | BagMate 23 cu ft Roof Bag – 840D PVC | SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo | Mockins XXL 50 Cu Ft Roof Bag | Yakima SkyBox NX 16 LG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity | 15 cubic feet | 30 Cubic Feet | 21 cubic feet | 19 Cubic feet | 20 cu ft | 15 cu ft | 16 Cubic Ft | 21 Cubic Feet | 17 cu ft | 14 cu ft | 30 cubic ft | 23 cu ft | 20 Cu Ft | 50 cu ft | 18 cu ft |
| Shell Type | 700D PVC tarpaulin | 840D PVC | Soft Shell | polyester | 900D PVC tarpaulin | soft shell | ASA-ABS plastic | not specified | Hard shell | ABS | not specified | 840D PVC | PVC | Soft-shell | not specified |
| Opening | not specified | not specified | not specified | not specified | not specified | not specified | Dual-side | not specified | not specified | dual-side | not specified | not specified | not specified | not specified | dual-sided |
| Load Capacity | not specified | not specified | not specified | not specified | not specified | 200 lbs | 75 kg | not specified | 165 lbs | 165 lbs | not specified | not specified | not specified | not specified | not specified |
| Water Resistance | 100% waterproof | 100% Waterproof | Waterproof | 100% waterproof | 100% waterproof | waterproof | not specified | not specified | not specified | waterproof | not specified | 100% waterproof | 100% Waterproof | Waterproof | not specified |
| Security | combination lock | not specified | not specified | not specified | Lock | not specified | not specified | SlideLock system | not specified | 2 keys and 2 straps | not specified | not specified | Combination lock | not specified | SKS lock |
| Installation | quickly and easily installed in minutes | 10 reinforced straps, 6 door hooks | Tie-Down Strap | door hook straps, 10 straps | Metal ring strap design | U-bolt installation | Tool-free | PowerClick quick-mount system | not specified | not specified | not specified | not specified | Straps and hooks, anti-slip mat | not specified | not specified |
| Vehicle Compatibility | not specified | not specified | not specified | fits cars with or without roof rack | With or without roof rack | not specified | not specified | not specified | Fits a wide range of cars and SUVs | all vehicles with roof rack | not specified | not specified | not specified | No roof rack needed | not specified |
| Dimensions | 44" L x 34" W x 17" H | 60 x 43 x 20 inches | 9.84 x 7.09 x 13.8 in | 47.2 x 35.4 x 19.8 in | 52 x 40 x 12-18.5 in | 51 x 36 x 5 in | 81 x 17 x 37 in | 95 x 40 x 20 inches | not specified | 62.2 x 31.5 x 13.4 in | 60"x43"x20" | 55" L x 44.9" W x 19.5" H | 44 x 34 x 17 in | 85 x 50 x 20 in | 75.5 x 35 x 16 in |
| Recommended Use | not specified | not specified | not specified | not specified | not specified | not specified | Luggage, gear, skis, snowboards | not specified | Travel essentials, luggage, outdoor gear | not specified | not specified | not specified | not specified | Tents, sleeping bags, suitcases | not specified |
| Vehicle Type | Car | Car | Car | Car | Car | not specified | not specified | not specified | not specified | not specified | not specified | Car, SUV | Car, SUV, Jeep | Car | not specified |
| Size | 15 Cubic Feet | 30 Cubic Feet | 21 Cubic Feet | 19 Cubic feet | 20 Cubic Feet | 15 Cubic Feet | Large | XX-Large | 17 Cubic Feet | 14 Cubic（Large） | 30 Cubic Feet | XXL 23 Cu. Ft. | not specified | 50 Cubic Feet | NX 16 |
| Mount Type | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount |
| Lockable | not specified | not specified | not specified | not specified | Lockable | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Lockable | not specified | Lockable |
| Includes Bag | not specified | not specified | not specified | not specified | not specified | With Bag | not specified | not specified | not specified | not specified | not specified | not specified | With Bag | With Bag | not specified |
| Weight | 100 kilograms | 12 pounds | 8.16 pounds | 12.4 pounds | not specified | not specified | not specified | 77 pounds | 35.3 pounds | 44.8 pounds | 12.4 pounds | 13.1 pounds | 8.8 pounds | 19 pounds | 46 pounds |
| Color | Black and Orange | Black and Orange | Black | ['Black', 'Orange', 'Grey'] | Black with Blue | black and orange | Black | TITAN | Black | Black | Navy Blue | Black | Black | Black | Black |
| Model | 15 Cubic Feet | 30 Cubic Feet | Sailnovo5033-FR | Rooftop_Cargo_Carrier | rooftop cargo bag | BASKET | 610750 | 639951 | bIi-QJmJN9FwtqXvOPt-w-cKQbKMo | nncczujx4eU50hm4c2vYzgYDb1 | MA-RB-30NVYBG-60X43X20-18 | RBM-CRB | MP-27200 | MA-RB-50BLK-85X50X20-94 | 8007369 |
Is Roof Mount worth it?
All products on this list use a roof mount, meaning they attach to your vehicle's roof via straps, clips, or crossbars. This frees up interior space for passengers or gear. Soft bags (like the MeeFar 15 cu ft or FIVKLEMNZ 30 cu ft) can install without a roof rack, making them versatile for any car. Hard boxes (like the Thule Motion 3 XXL) typically require crossbars but offer better security and weather protection. Roof mount is the standard for external cargo; it is worth it if you need extra room but can accept the added height and wind noise.
Worth it if
- You need to carry bulky items like luggage, camping gear, or sports equipment without sacrificing passenger space.
- You want a low-cost, stowable option that works on almost any vehicle, even without a roof rack.
- You prioritize security and weatherproofing with a lockable hard box that mounts to crossbars.
Skip it if
- You prefer a trunk-mounted or hitch-mounted carrier that is easier to access at ground level.
- You have a low garage clearance or frequently drive into low-clearance areas where a roof box could hit.
- You do not have crossbars and do not want to install them, and you need a hard box.
You might also want to see our guide on the best box fans for your home needs.
How we picked
We started by searching Amazon for roof-mount cargo carriers, filtering for listings that state "Roof Mount" in the title or feature list. That gave us a pool of soft bags and hard-shell boxes. We then ranked them by availability first, then by each listing's overall rating weighted by the number of ratings, and finally by how many of our criteria the specs meet.
To compare like with like, we focused on published specs: capacity in cubic feet, dimensions, weight, and whether the unit is lockable or has dual-side opening. Only one size or variant per product family is shown. Prices and stock update live on the page, so we do not include them here. No product was physically handled.
How to choose the right roof cargo box
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Shell type: soft bag vs hard box
Soft bags are lightweight, fold flat for storage, and often fit cars without a roof rack. Hard boxes are rigid, lockable, and protect gear better from weather and theft. If you need occasional extra space and minimal setup, a soft bag like the MeeFar 15 cu ft is practical. For frequent use or high-value cargo, a hard box offers more security and durability.
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Capacity: how much space you need
Capacity is measured in cubic feet. A 14 to 16 cu ft box fits luggage for a weekend trip. A 20 to 30 cu ft bag can hold bulky gear like camping equipment or sports gear. Check your vehicle's roof load limit before choosing. The FIVKLEMNZ 30 cu ft bag offers the most space on this list, but ensure your roof can support the weight when fully loaded.
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Opening style: single vs dual side
Dual-side opening lets you access cargo from either side of the vehicle, which is convenient when parked on a street or near a wall. Single-side or top-opening boxes require you to plan access. Hard boxes like the Thule Pulse 2 L and GarveeTech 14 cu ft offer dual-side opening. If you frequently load or unload from one side only, a single-side box may be simpler and lighter.
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Mount type: rack required or not
Some soft bags use straps that hook inside the door frames, so no roof rack is needed. Others require crossbars. Hard boxes always need a roof rack. Check your vehicle's roof: if you have bare roof, choose a bag with universal straps. If you already have crossbars, a hard box gives better security. The BagMate 23 cu ft bag installs without a rack, making it a flexible option for any car.
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Water resistance and weather protection
Most soft bags claim to be waterproof, but materials vary. Look for PVC or heavy-duty polyester with taped seams. Hard boxes are made of ABS plastic or similar, which is naturally water-resistant. If you drive in heavy rain or snow, a hard box like the Auto Dynasty 13 cu ft provides consistent protection. For occasional showers, a waterproof soft bag with a zipper cover is usually sufficient.
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Security: lockable or not
Hard boxes typically include a lock to secure the contents. Some soft bags have lockable zippers or loops for a padlock. If you leave gear in the box while parked, a lockable hard box is safer. The Asinking 20 cu ft roof bag is described as lockable, but verify the lock type. For overnight stops or urban parking, a hard box with a built-in lock is the more secure choice.
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Weight and ease of installation
Soft bags weigh 8 to 13 pounds, making them easy to lift and install alone. Hard boxes can weigh 40 to 77 pounds, so you may need help or a permanent mount. Consider how often you will remove the box. If you need to take it off after each trip, a lightweight bag like the Sailnovo 21 cu ft (8.16 lb) is much easier to handle than a 77-pound Thule Motion 3 XXL.
Frequently asked questions
What is the difference between a soft roof bag and a hard roof box?
Soft roof bags are lightweight, foldable, and can often be installed without a roof rack. Hard roof boxes are rigid, lockable, and provide better protection from weather and theft. Hard boxes typically require crossbars for mounting, while soft bags use straps or clips to attach directly to the vehicle.
Can I use a roof cargo box without a roof rack?
Many soft roof bags, like the MeeFar 15 cu ft Roof Bag or the FIVKLEMNZ 30 Cubic Feet Roof Bag, are designed for vehicles without a roof rack. They attach using straps that go through the door frames. Hard-shell boxes, such as the Thule Motion 3 XXL, require crossbars or a roof rack system for secure mounting.
How much weight can a roof cargo box hold?
Weight capacity varies by product. For example, the Garvee 14 cu ft Dual-Side Rooftop Cargo Box can hold up to 165 pounds. Always check the product specifications and your vehicle's roof load limit. Overloading can damage the box or your vehicle.
Are roof cargo boxes waterproof?
Most soft roof bags on this list, such as the MeeFar 15 cu ft and the Asinking 20 cu ft, are advertised as 100% waterproof. Hard-shell boxes like the Thule Motion 3 XXL and GarveeTech 14 cu ft are also waterproof, with sealed seams and gaskets to keep gear dry.
What size roof cargo box do I need?
The right size depends on your gear. Soft bags range from 15 cubic feet (MeeFar) to 30 cubic feet (FIVKLEMNZ). Hard boxes typically offer 13 to 18 cubic feet. Measure your items and consider your vehicle's roof dimensions. A larger box like the Thule Motion 3 XXL at 95 inches long fits bulky items but requires more roof space.
Do roof cargo boxes lock for security?
Hard-shell boxes like the Yakima SkyBox NX 16 LG and Auto Dynasty 13 cu ft are lockable, providing security for your gear. Some soft bags, such as the Asinking 20 cu ft, also include a lockable zipper. Always check the product features if security is a priority.
How do I install a roof cargo box?
Installation depends on the type. Soft bags like the Sailnovo 21 cu ft use straps that loop through door frames and tighten. Hard boxes like the Thule Motion 3 XXL use a PowerClick mounting system that clamps onto crossbars without tools. Always follow the manufacturer's instructions for a secure fit.
Can I open a roof cargo box from both sides?
Some hard-shell boxes offer dual-side opening. The Thule Pulse 2 L, GarveeTech 14 cu ft, and Garvee 14 cu ft all have dual-side access, allowing you to load and unload from either side of the vehicle. Soft bags typically open from one side only.