Sailnovo Roof Box Roof Bag Alternatives: 6 Similar Picks Compared
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If you are looking for sailnovo roof box roof bag alternatives, you likely want options that match the original’s practical design. The Sailnovo 15 cu ft Soft Shell Roof Bag offers a compact 430-liter capacity and weighs only 5.95 pounds. Its soft-shell construction and included door hooks make it a versatile choice for cars without roof racks. This lightweight carrier provides solid weather protection in a space-saving package.
However, you might need more cargo space or a different mounting solution. Some travelers prefer larger volumes, such as the 40 cubic feet found in Mockins or MCBD bags. Others may want a hard shell for better impact resistance or a specific color like the black options available from other brands. The 6 products listed here were selected because their specifications overlap with the original. You can compare capacities, weights, and dimensions to find the best fit for your vehicle and cargo needs.
How Each Alternative Compares
Sailnovo 21 cu ft Soft Roof Bag
The Sailnovo 21 cu ft Soft Roof Bag offers 6 cubic feet more capacity than the 15 cu ft model, reaching 21 cubic feet total. It weighs 8.16 pounds, which is slightly heavier than the original’s 5.95 pounds. The dimensions are nearly identical in length and width, but it is slightly taller at 13.8 inches. This extra space suits travelers needing more room without switching brands. You get the same soft-shell waterproof design and universal mounting options. If you need more cargo volume but want to keep the same lightweight, compact footprint, this larger Sailnovo option is a logical step up.
Mockins 40 cu ft XXL Soft-Shell Roof Bag
The Mockins 40 cu ft XXL Soft-Shell Roof Bag provides significantly more storage, offering 40 cubic feet compared to the original’s 15 cubic feet. It is much larger, measuring 72 inches long and 48 inches wide, and weighs 15.7 pounds. This model is designed for vehicles without roof racks, using a universal fit system similar to the original. However, its sheer size requires a larger vehicle roof. You gain substantial capacity for long trips or bulky gear. If you need maximum soft-shell space and have a vehicle that can support the larger dimensions, this Mockins bag offers far more utility than the compact Sailnovo.
Mockins 40 cu ft XXL Roof Bag
The Mockins 40 cu ft XXL Roof Bag matches the previous Mockins model in capacity and dimensions, offering 40 cubic feet of space. It weighs 16.5 pounds, making it slightly heavier than the other 40 cu ft option. Like the original, it is a soft-shell carrier suitable for vehicles with or without racks. The key difference is the inclusion of a full mounting kit, ensuring secure attachment regardless of your vehicle’s roof infrastructure. This model is ideal if you prioritize a complete setup out of the box. It sacrifices the compact portability of the 15 cu ft Sailnovo for vastly increased cargo volume.
Mockins 30 cu ft Soft-Shell Vinyl Roof Bag
The Mockins 30 cu ft Soft-Shell Vinyl Roof Bag offers a middle ground in capacity, providing 30 cubic feet of storage. It measures 60 inches long and 43 inches wide, fitting between the compact original and the larger 40 cu ft options. Weighing 15.5 pounds, it is heavier than the Sailnovo 15 cu ft bag. This model includes a full accessory kit and is designed for cars, SUVs, and trucks. The vinyl construction ensures waterproof protection. If you need more space than the 15 cu ft bag but do not want the massive footprint of the 40 cu ft models, this 30 cu ft option is a practical compromise.
Rooftop Ranger 21 cu ft Soft Shell Cargo Carrier
The Rooftop Ranger 21 cu ft Soft Shell Cargo Carrier offers 21 cubic feet of capacity, which is 6 cubic feet more than the original. It weighs 8.5 pounds, slightly heavier than the 5.95 pound Sailnovo. The dimensions are larger, measuring 54 inches long and 42 inches wide, compared to the original’s compact 9.84 x 6.89 x 13.4 inches. This model includes a security lock and anti-slip mat, enhancing safety and roof protection. It is a universal fit soft-shell bag. If you want more capacity than the 15 cu ft bag but prefer a dedicated roof-mounted system with added security features, this Rooftop Ranger is a suitable alternative.
MCBD 40 cu ft Soft-Shell Roof Bag
The MCBD 40 cu ft Soft-Shell Roof Bag provides 40 cubic feet of storage, nearly triple the capacity of the original 15 cu ft bag. It weighs 16.3 pounds, making it significantly heavier and less portable. The listed dimensions in the data are minimal, but the capacity indicates a large footprint suitable for SUVs and trucks. This bag is designed for vehicles with roof racks, differing from the original’s universal door-hook compatibility. It is ideal for buyers who prioritize maximum cargo volume over compact storage. If you have a large vehicle and need extensive soft-shell space, this MCBD bag offers substantial utility compared to the smaller Sailnovo.
Quick picks
Our 7 picks
Sailnovo 15 cu ft Soft Shell Roof Bag
Best for: lightweight, compact roof bag for cars without racks
- Capacity
- 15 cubic feet / 430 L
- Shell Type
- Soft shell
- Vehicle Compatibility
- Fits most cars with or without roof rack
- Dimensions
- 9.84 x 6.89 x 13.4 in
- Weight
- 5.95 pounds
The Sailnovo 15 cu ft roof bag is a soft-shell cargo carrier with 15 cubic feet (430 L) of capacity. It measures 9.84 x 6.89 x 13.4 inches and weighs 5.95 pounds. This bag fits most cars with or without a roof rack, using 4 door hooks and 6 adjustable straps for installation. It includes an anti-slip mat and a storage bag. It suits you if you need a lightweight, weatherproof carrier for small trips.
Pros
- 15 cubic feet (430 L) capacity holds 4-6 small suitcases or camping gear
- Fits most cars with or without a roof rack using included door hooks
- Waterproof zipper, double-reinforced seams, and velcro zipper flaps for weather protection
- Lightweight at 5.95 pounds and packs into a 15 x 11 x 5 inch storage bag
Cons
- Smaller capacity than many soft-shell alternatives (15 cu ft vs 21-40 cu ft)
- Soft shell offers less security and protection than a hard-shell roof box
- No built-in lights or remote lock listed
Good fit if
- You drive a car without a roof rack and want a carrier that uses door hooks
- You need a lightweight, portable roof bag for occasional weekend trips
- You prioritize weatherproofing with a waterproof zipper and reinforced seams
Skip if
- You need to carry more than 15 cubic feet of cargo
- You prefer a hard-shell roof box for better security and aerodynamics
- You want a carrier with integrated lights or a locking mechanism
Verdict: Sailnovo 15 cu ft Soft-Shell Roof Bag is a practical, lightweight soft-shell carrier for cars with or without roof racks, offering solid weather protection in a compact size that suits short trips.
Sailnovo 21 cu ft Soft Roof Bag
Best for: large waterproof soft-shell rooftop cargo
- 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
- Vehicle Type
- Car
The Sailnovo 21 cu ft Roof Bag is a waterproof soft-shell carrier that mounts to your car roof with tie-down straps. It weighs 8.16 pounds and comes in a second 15 cu ft variation with a 17-inch height. The 21 cu ft size suits drivers who need a large, removable cargo option without a hard-shell box.
Pros
- 21 cubic feet capacity
- Waterproof soft-shell construction
- Tie-down strap installation
- Weighs only 8.16 pounds
- Available in a 15 cu ft variation
Cons
- No hard shell for added protection
- Installation uses tie-down straps only
- Listed dimensions suggest a compact footprint
Good fit if
- You want a large soft-shell cargo bag
- You prefer tie-down strap mounting over a rack
- You want a waterproof carrier that stores flat
Skip if
- You need a rigid shell for impact protection
- You want a rooftop box with a permanent mount
- You require a taller cargo profile
Verdict: Sailnovo 21 cu ft Soft-Shell Roof Bag is a lightweight, waterproof soft-shell carrier with a generous 21 cubic feet of space and a second 15 cu ft option.
Mockins 40 cu ft XXL Soft-Shell Roof Bag
Best for: budget-conscious buyers needing a large waterproof roof bag
- Capacity
- 40 cu ft
- Shell Type
- Soft-shell
- Water Resistance
- Waterproof
- Dimensions
- 72 x 48 x 20 in
- Recommended Use
- Suitcases, sleeping bags
- Vehicle Type
- Car
This Mockins soft-shell roof bag gives you 40 cubic feet of cargo space, measuring 72 by 48 by 20 inches. It is made from abrasion-resistant vinyl with waterproof zippers and reinforced seams to keep your gear dry. The kit includes straps, hooks, a roof mat, and a carry bag, and it fits vehicles with or without crossbars. It suits anyone who needs a large, waterproof carrier for road trips or moving.
Pros
- 40 cu ft capacity (72x48x20 in) for bulky loads
- Waterproof vinyl shell with sealed zippers and reinforced seams
- Includes 3 buckle straps, 3 ratchet straps, 6 door hooks, 2 trunk hooks, roof mat, combo lock, and carry bag
- Fits vehicles with or without crossbars or roof racks
- Backed by a 10-year limited warranty
Cons
- Soft-shell design offers less security than a hard-shell box
- Assembly required: you need to attach straps and hooks for each use
- No built-in locking mechanism beyond the included combo lock
Good fit if
- You need a large, waterproof cargo carrier for a road trip or move
- Your vehicle lacks crossbars and you want a bag that works with door or trunk hooks
- You prefer a complete kit with straps, mat, and storage bag included
Skip if
- You want a hard-shell roof box for better security and aerodynamics
- You need a smaller, lighter bag for occasional short trips
- You plan to carry fragile items that require a rigid container
Verdict: Mockins 40 cu ft XXL Soft-Shell Roof Bag is a practical, budget-friendly choice for large waterproof cargo storage, especially if your vehicle lacks crossbars.
Mockins 40 cu ft XXL Roof Bag
Best for: large soft-shell cargo loads with full mounting kits
- Capacity
- 40 cu ft
- Shell Type
- 840D vinyl
- Water Resistance
- waterproof
- Dimensions
- 72 x 48 x 20 in
- Vehicle Type
- Car
- Weight
- 16.5 pounds
This Mockins XXL roof bag gives you 40 cubic feet of space in a 72 x 48 x 20 inch soft-shell carrier. It is made from waterproof 840D vinyl with covered zippers and reinforced seams. The complete kit includes buckle and ratchet straps, door and trunk hooks, a roof mat, a lock, and a carry bag. It suits drivers who want a large, accessory-complete carrier for vehicles with or without roof racks.
Pros
- 40 cu ft capacity in a 72 x 48 x 20 in soft-shell design
- Waterproof 840D vinyl with covered zippers and reinforced seams
- Fits vehicles with or without crossbars, side rails, or roof racks
- Kit includes straps, hooks, roof mat, lock, and carry bag
- Backed by a 10-year limited warranty
Cons
- Soft-shell design offers no hard-shell impact protection
- Weighs 16.5 pounds before adding your cargo
Good fit if
- You need a large 40 cu ft carrier for bulky gear like sleeping bags and tents
- You want a complete kit with multiple mounting options and accessories
- You drive a vehicle without roof rails and need door or trunk hook mounting
Skip if
- You want a hard-shell carrier with rigid protection
- You prefer a lighter bag for frequent mounting and removal
- You need a more compact size for smaller vehicles or limited roof space
Verdict: Mockins 40 cu ft XXL Soft-Shell Roof Bag is a roomy, waterproof carrier that comes with everything you need to mount it securely on vehicles with or without racks.
Mockins 30 cu ft Soft-Shell Vinyl Roof Bag
Best for: large waterproof roof cargo with full accessory kit
- Capacity
- 30 cu ft
- Shell Type
- soft-shell vinyl
- Water Resistance
- waterproof
- Security
- combination lock
- Vehicle Compatibility
- vehicles with or without roof rack
- Dimensions
- 60 x 43 x 20 in
The Mockins 30 cu ft Soft-Shell Vinyl Roof Bag gives you 30 cubic feet of cargo space in a 60x43x20-inch footprint. It is made from durable, abrasion-resistant vinyl with welded seams and a waterproof zipper under a Velcro flap to keep moisture out. This bag works on vehicles with or without roof racks and includes a protective roof mat, door hooks, straps, and a combination lock. It suits anyone who needs a large, all-weather soft-shell carrier for road trips.
Pros
- 30 cu ft capacity (60x43x20 in) for bulky gear
- Waterproof vinyl shell with welded seams and waterproof zipper
- Comes with roof mat, door hooks, ratchet straps, and combination lock
- Fits vehicles with or without roof racks
- Folds into its own carry case for storage
Cons
- No integrated lights or remote control
- Soft-shell vinyl may not be as rigid as a hard-shell box
- Requires assembly of straps and mat before each use
Good fit if
- You need 30 cubic feet of roof storage for camping or family trips
- You want a waterproof carrier that works with or without roof racks
- You prefer a soft-shell bag that folds flat when not in use
Skip if
- You need a hard-shell box for frequent high-speed driving
- You want a carrier with built-in lights or a locking mechanism beyond a combination lock
- You prefer a bag that is ready to mount without any setup
Verdict: Mockins 30 cu ft Soft-Shell Vinyl Roof Bag delivers a large 30-cubic-foot waterproof cargo bag with a full accessory kit, making it a practical choice for travelers who need extra space on vehicles with or without roof racks.
Rooftop Ranger 21 cu ft Soft Shell Cargo Carrier
Best for: drivers needing a waterproof soft-shell bag that fits any vehicle
- Capacity
- 21 cu ft
- Shell Type
- Soft shell
- Water Resistance
- 100% waterproof
- Security
- Security lock
- Installation
- Door hooks and straps
- Vehicle Compatibility
- With or without roof racks
View on Amazon: Rooftop Ranger 21 cu ft Soft Shell Cargo Carrier
The Rooftop Ranger 21 cu ft soft-shell cargo carrier offers a 100% waterproof design with a 21-cubic-foot capacity. It installs on any vehicle with or without roof racks using door hooks and straps. This carrier suits drivers who want a secure, weatherproof bag for weekend trips without needing permanent roof hardware.
Pros
- 100% waterproof construction protects belongings in all weather
- 21 cu ft capacity fits gear for weekend trips
- Works with or without roof racks via door hooks and straps
- Includes security lock for added theft deterrence
- Anti-slip mat protects vehicle roof from scratches
Cons
- Soft shell offers less protection against impacts than a hard shell
- Installation requires hooking straps to door frames, which may not suit all vehicle shapes
- No rain fly or additional weather seals listed beyond the waterproof shell
Good fit if
- You need a fully waterproof roof bag for rainy or snowy climates
- You want a carrier that works on a vehicle without roof racks
- You prefer a soft shell for easy storage when not in use
Skip if
- You need more than 21 cubic feet of cargo capacity
- You want a hard-shell carrier for maximum security and aerodynamics
- You prefer a carrier with a zippered cover or additional weather protection
Verdict: Rooftop Ranger 21 cu ft Soft Shell Carrier is a solid waterproof soft-shell option for drivers who need a universal-fit roof bag with security lock and anti-slip mat, though its capacity is smaller than some alternatives and it lacks a hard shell's impact protection.
MCBD 40 cu ft Soft-Shell Roof Bag
Best for: SUVs and trucks needing large soft-shell storage
- Capacity
- 40 cu ft
- Shell Type
- soft-shell, 900D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- combination lock
- Dimensions
- 72 x 48 x 20 in
- Vehicle Type
- Car, SUV
This MCBD roof bag offers 40 cubic feet of storage in a 72x48x20 inch soft-shell design. It uses 900D PVC tarpaulin for 100% waterproof protection. The 16.3-pound bag includes ratchet straps, door hooks, and a combination lock. It fits vehicles with side rails, cross bars, or no rack. You get a large capacity carrier that folds for storage. It suits long trips and camping gear transport.
Pros
- 40 cubic feet capacity
- 900D PVC tarpaulin shell
- Includes combination lock
- Fits vehicles without roof racks
Cons
- 16.3 pounds is heavy for soft-shell
- No dedicated hard-shell impact protection
- Requires roof rails or cross bars for mounting
Good fit if
- You need 40 cubic feet of extra space
- You drive an SUV or truck with cross bars
- You want 100% waterproof soft-shell protection
Skip if
- You drive a sedan without roof rails
- You prefer a rigid hard-shell carrier
- You need a lighter carrier under 15 pounds
Verdict: MCBD 40 cu ft Soft-Shell Roof Bag provides ample 40 cubic feet of waterproof storage for SUVs and trucks. It fits buyers who need maximum soft-shell capacity and have the roof infrastructure to support it.
Specifications side by side
| Spec | Sailnovo 15 cu ft Soft Shell Roof Bag | Sailnovo 21 cu ft Soft Roof Bag | Mockins 40 cu ft XXL Soft-Shell Roof Bag | Mockins 40 cu ft XXL Roof Bag | Mockins 30 cu ft Soft-Shell Vinyl Roof Bag | Rooftop Ranger 21 cu ft Soft Shell Cargo Carrier | MCBD 40 cu ft Soft-Shell Roof Bag |
|---|---|---|---|---|---|---|---|
| Capacity | 15 cubic feet / 430 L | 21 cubic feet | 40 cu ft | 40 cu ft | 30 cu ft | 21 cu ft | 40 cu ft |
| Shell Type | Soft shell | Soft Shell | Soft-shell | 840D vinyl | soft-shell vinyl | Soft shell | soft-shell, 900D PVC tarpaulin |
| Water Resistance | not specified | Waterproof | Waterproof | waterproof | waterproof | 100% waterproof | 100% waterproof |
| Security | not specified | not specified | not specified | not specified | combination lock | Security lock | combination lock |
| Installation | not specified | Tie-Down Strap | not specified | not specified | not specified | Door hooks and straps | not specified |
| Vehicle Compatibility | Fits most cars with or without roof rack | not specified | not specified | not specified | vehicles with or without roof rack | With or without roof racks | not specified |
| Dimensions | 9.84 x 6.89 x 13.4 in | 9.84 x 7.09 x 13.8 in | 72 x 48 x 20 in | 72 x 48 x 20 in | 60 x 43 x 20 in | 54 x 42 x 17 in | 72 x 48 x 20 in |
| Recommended Use | not specified | not specified | Suitcases, sleeping bags | not specified | not specified | not specified | not specified |
| Vehicle Type | Car | Car | Car | Car | Car, SUV, Truck | Car | Car, SUV |
| Size | 15 cubic feet/430 L | 21 Cubic Feet | 40 Cubic Feet | 40 Cubic Feet | 30 Cubic Feet | 21 Cubic Feet | 40 Cubic Feet |
| Mount Type | not specified | Roof Mount | not specified | not specified | Roof Mount | Roof Mount | Roof Mount |
| Includes Bag | not specified | not specified | not specified | not specified | With Bag | not specified | With Bag |
| Weight | 5.95 pounds | 8.16 pounds | 15.7 pounds | 16.5 pounds | 15.5 pounds | 8.5 pounds | 16.3 pounds |
| Color | Orange | Black | Black/Orange | Black | Black/Orange | Black And Gray | Blue |
| Model | #ASMD005033_2_S_V1 | Sailnovo5033-FR | MA-RB-40BLK-89-V2 | MA-RB-40BLK-72X48X20-89 | MA-RB-30OR-88-V1 | LTCRB-002 | 40cf |
Frequently asked questions
Can I use a roof bag without crossbars?
Yes, several soft-shell options are designed for vehicles without racks. The Mockins 40 cu ft XXL Roof Bag includes a full mounting kit to secure it directly to the roof. The Sailnovo 15 cu ft model is also listed as suitable for cars without racks. These bags use straps to attach to door frames or roof edges.
Which roof bag has the largest capacity?
The Mockins 40 cu ft XXL Soft-Shell Roof Bag and the MCBD 40 cu ft Soft-Shell Roof Bag both offer the largest capacity at 40 cubic feet. The Mockins 30 cu ft model provides a slightly smaller 30 cubic feet. These large sizes are ideal for SUVs and trucks needing maximum storage space.
How heavy is the lightest roof bag?
The Sailnovo 15 cu ft Soft Shell Roof Bag is the lightest option, weighing only 5.95 pounds. The Sailnovo 21 cu ft model weighs 8.16 pounds. The Rooftop Ranger 21 cu ft carrier is slightly heavier at 8.5 pounds. These lightweight bags are easy to handle and install on smaller vehicles.
Are these roof bags waterproof?
Yes, all listed soft-shell bags are designed to be waterproof. The Sailnovo 21 cu ft model is described as a waterproof soft-shell carrier. The Mockins 40 cu ft XXL is noted for its waterproof construction. The MCBD 40 cu ft bag also provides waterproof storage for your cargo during travel.
What is the difference between the two 40 cu ft Mockins bags?
Both are 40 cubic feet, but they differ in included accessories and color. The Mockins 40 cu ft XXL Roof Bag comes with a full mounting kit and is black. The other 40 cu ft Mockins bag is black and orange. Both share identical dimensions of 72 inches in length and 48 inches in width.
Do these bags fit on SUVs and trucks?
Yes, several models are explicitly listed for SUVs and trucks. The Mockins 30 cu ft Soft-Shell Vinyl Roof Bag supports Car, SUV, and Truck types. The MCBD 40 cu ft bag is suitable for Car and SUV. The larger 40 cubic feet capacity is particularly useful for larger vehicle roofs.
Which bag is best for short trips?
The Sailnovo 15 cu ft Soft Shell Roof Bag is best for short trips. It offers a compact 430-liter capacity and weighs just 5.95 pounds. Its small footprint makes it easy to store when not in use. The 15 cubic feet size is sufficient for weekend gear without adding excessive wind resistance.
Does the Rooftop Ranger bag include a lock?
The product data does not mention a lock for the Rooftop Ranger 21 cu ft Soft Shell Cargo Carrier. The verdict notes it has a security lock, but this is not in the specs. You should verify this feature with the manufacturer. The specs list dimensions, weight, and model number only.