Best Sailnovo Roof Cargo Boxes: 8 Models Compared
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This guide compares 8 best sailnovo roof cargo boxes to help you choose. We ranked these items strictly by their published specifications. Sailnovo offers soft-shell roof bags and foldable carriers in sizes from 15 to 21 cubic feet. These are designed for cars with or without roof racks. The top pick is the Sailnovo 21 cu ft Soft Roof Bag for its large waterproof capacity. Each model’s dimensions, weight, and material are listed for your review. You can find the full comparison below.
Quick picks
Our 8 picks
Sailnovo 21 cu ft Soft Roof Bag
Best for: large waterproof roof bag without a rack
- 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 Cubic Feet Soft-Shell Roof Bag is a waterproof roof-mounted cargo carrier for cars without a factory luggage rack. It uses a tie-down strap installation and a soft-shell design. The 21-cubic-foot capacity suits weekend trips or bulky gear. It weighs 8.16 pounds and is available in a 15-cubic-foot variation if you need less space.
Pros
- 21 cubic feet of cargo capacity
- Waterproof soft-shell construction
- Tie-down strap installation for cars without roof racks
- Weighs 8.16 pounds
- Available in 21- and 15-cubic-foot size options
Cons
- Soft shell, so it does not offer hard-shell protection
- Requires tie-down straps rather than a rack-mounted hard mount
- Listed dimensions are compact, so check fit for larger roof areas
Good fit if
- You need a large soft-shell roof bag for bulky gear
- You want waterproof storage for a car without a luggage rack
- You prefer a lighter roof carrier that installs with straps
Skip if
- You want a hard-shell roof box with a locking lid
- You need a permanently mounted roof rack system
- You require a carrier with a rigid, impact-resistant shell
Verdict: Sailnovo 21 Cubic Feet Soft-Shell Roof Bag is a straightforward, waterproof roof bag with a generous 21-cubic-foot capacity and easy tie-down installation for cars without roof racks.
Sailnovo 15 cu ft Foldable Roof Bag
Best for: budget-conscious shoppers needing a lightweight, foldable roof bag
- Capacity
- 15 cubic feet / 470L
- Shell Type
- foldable roof bag
- Water Resistance
- Waterproof
- Dimensions
- 41 x 35 x 17 in
- Weight
- 5.34 pounds
The Sailnovo 15 cu ft Foldable Roof Bag is a lightweight, waterproof soft-shell carrier with 15 cubic feet (470L) of capacity. It measures 41 x 35 x 17 inches and weighs only 5.34 pounds, making it easy to handle and store when not in use. This budget-friendly option suits drivers who need occasional extra cargo space without the weight or cost of a hard shell.
Pros
- Lightweight at 5.34 pounds for easy handling
- Waterproof construction protects cargo
- Foldable design for compact storage when not in use
- 15 cubic feet / 470L capacity fits standard luggage and gear
Cons
- Soft-shell bag offers less security than a hard roof box
- No locking mechanism listed for theft prevention
- Smaller capacity than some larger roof bags on the market
Good fit if
- You want a lightweight, easy-to-store cargo carrier for occasional use
- You need a waterproof solution for protecting gear from rain
- You are on a tight budget and prioritize low weight over hard-shell security
Skip if
- You require a hard-shell box for maximum security and durability
- You need more than 15 cubic feet of cargo capacity
- You prefer a carrier with built-in locks or additional security features
Verdict: Sailnovo 15 cu ft Foldable Roof Bag is a practical, budget-friendly choice for light-duty cargo needs, offering waterproof protection and easy storage at a low weight.
Sailnovo 15 cu ft Waterproof Roof Bag
Best for: drivers needing a compact, foldable waterproof roof bag
- Capacity
- 15 cubic feet/430 L
- Shell Type
- Soft Shell
- Water Resistance
- Waterproof
- Dimensions
- 14.2 x 9.45 x 7.48 in
- Vehicle Type
- Car
- Mount Type
- Roof Mount
This Sailnovo roof bag gives you 15 cubic feet of soft-shell storage for your car. It measures 14.2 by 9.45 by 7.48 inches and is made from 1000D waterproof material with sealed zippers. The bag includes six tie-down straps, four door hook straps, and a protective mat. It fits cars with or without crossbars and stores flat when not in use.
Pros
- 15 cu ft / 430 L capacity holds 3-5 medium suitcases
- Waterproof 1000D material with double-seam and double-coat construction
- Includes 6 heavy-duty tie-down straps plus 4 door hook straps
- Fits cars with or without roof racks, including bare roofs
- Foldable design stores compactly when not in use
Cons
- Soft shell offers less security than a hard-shell box
- No lock or key included for securing the zipper
- Dimensions are relatively small compared to larger roof boxes
Good fit if
- You need a lightweight, foldable roof bag that stores easily
- You want a waterproof carrier for occasional trips
- You drive a car without roof rails or crossbars
Skip if
- You prefer a hard-shell roof box with a locking mechanism
- You need more than 15 cubic feet of cargo capacity
- You want a carrier with integrated lights or remote access
Verdict: Sailnovo 15 cu ft Soft Shell Roof Bag is a practical, waterproof soft-shell bag for drivers who want foldable storage that works on cars with or without roof racks. It offers a secure tie-down system and easy installation, but lacks the rigidity and lock of a hard box.
Sailnovo 20 cu ft Roof Bag
Best for: large family trips needing waterproof soft storage
- Capacity
- 20 cu ft / 580L
- Shell Type
- 1000D waterproof PVC
- Water Resistance
- Waterproof
- Installation
- Straps, door hooks, non-slip mat
- Vehicle Compatibility
- With or without roof bars
- Dimensions
- 51 x 39 x 17 in
This is a 20-cubic-foot (580L) soft-shell roof bag from Sailnovo. It measures 51 x 39 x 17 inches and is made from three-layer 1000D waterproof PVC with a 13cm rain curtain. It uses 6 reinforced straps, 6 door hooks, and a non-slip mat for installation. It fits vehicles with or without roof bars and suits families needing extra cargo space for trips.
Pros
- 20 cu ft / 580L capacity holds luggage for 5-8 people
- Three-layer 1000D waterproof PVC with extended rain curtain
- Includes 6 reinforced straps, 6 door hooks, and non-slip mat with reflective strip
- Fits vehicles with or without roof bars
- Folds into storage bag when not in use
Cons
- Soft-shell design offers less security than hard-shell boxes
- No locking mechanism listed
- Requires strapping and hook setup, no quick-mount system
Good fit if
- You need a large-capacity roof bag for family trips with 5-8 people
- You want a waterproof soft carrier that works on vehicles with or without roof bars
- You prefer a foldable storage option to save space when not in use
Skip if
- You want a hard-shell roof box for maximum security and lockable storage
- You need a roof carrier that installs without straps or door hooks
- You require a smaller, lighter bag for occasional short trips
Verdict: Sailnovo 20 cu ft Heavy Duty Roof Bag offers a large 580L capacity and waterproof PVC construction for families needing extra cargo space, but its soft-shell design lacks the security of a hard box.
Sailnovo 15 cu ft Soft Shell Roof Bag
Best for: lightweight, portable roof cargo on cars without roof 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
This Sailnovo roof bag offers 15 cubic feet (430 L) of soft-shell storage for your gear. It fits most cars with or without a roof rack thanks to the included door hooks and adjustable straps. The waterproof zipper and reinforced seams help keep your belongings dry. It is a lightweight, portable option for occasional 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 4 door hooks and 6 straps
- Waterproof zipper and double-reinforced fabric seams for weather resistance
- Lightweight at 5.95 pounds and packs into a storage bag (15 x 11 x 5 in)
Cons
- Soft shell offers less security and aerodynamics than a hard shell box
- Orange color may not match all vehicles or preferences
- No remote or lock listed for added security
Good fit if
- You need extra cargo space for a road trip and want a lightweight, packable carrier
- You have a car without roof rails and want a bag that uses door hooks for installation
- You prefer a soft-shell bag that can be stored compactly when not in use
Skip if
- You want a hard-shell roof box for better aerodynamics and security
- You need a larger capacity than 15 cubic feet for bulky items
- You prefer a color other than orange
Verdict: Sailnovo 15 Cubic Feet Soft Shell Roof Bag is a practical, lightweight soft-shell carrier that works with most cars, but its orange color and soft-shell design may not suit everyone.
Sailnovo 15 cu ft Soft-Shell Roof Bag
Best for: budget-friendly soft-shell storage for cars without roof racks
- Capacity
- 15 cubic feet / 430 L
- Shell Type
- Soft shell (1000D fabric)
- Installation
- 2 reinforced straps, 4 door hooks
- Vehicle Compatibility
- Fits most cars with or without roof rack
- Dimensions
- 9.84 x 6.69 x 13.4 in
- Weight
- 5.6 pounds
This Sailnovo roof bag adds 15 cubic feet (430 liters) of weatherproof storage to your car. It is a soft-shell carrier made from triple-layer 1000D fabric with a waterproof zipper and reinforced seams. It installs on most cars with or without roof racks using two straps and four door hooks. This bag suits families who need occasional extra cargo space for camping or road trips.
Pros
- Triple-layer 1000D fabric is twice as strong as 500D fabric
- Waterproof zipper and double-reinforced seams keep contents dry
- Includes 2 reinforced straps and 4 door hooks for cars without roof racks
- Folds into a compact storage bag when not in use
Cons
- Soft shell offers less security than a hard-shell box
- No built-in lock listed for the zipper
Good fit if
- You want a lightweight, foldable roof bag that stores easily
- Your car does not have a roof rack and you need door-hook installation
- You need 15 cubic feet of temporary cargo space for trips
Skip if
- You prefer a hard-shell roof box for maximum security and aerodynamics
- You need more than 15 cubic feet of cargo capacity
Verdict: Sailnovo 15 cu ft Soft-Shell Roof Bag is a practical, weather-resistant soft carrier for drivers who need occasional extra space and want a bag that fits cars with or without roof racks.
Sailnovo 15 cu ft Soft Shell Roof Bag
Best for: budget-conscious travelers needing quick, waterproof roof storage
- Capacity
- 15 Cubic Feet / 430L
- Shell Type
- Soft shell
- Water Resistance
- Waterproof
- Installation
- Easy to set up for most vehicles
- Dimensions
- 40.9 x 35.8 x 16.9 in
- Vehicle Type
- Car
This 15-cubic-foot soft-shell roof bag from Sailnovo provides 430 liters of storage for 3-5 people's luggage. It measures 40.9 x 35.8 x 16.9 inches and uses a triple-layer 1000D fabric with waterproof zippers and reinforced seams. It fits most vehicles with or without roof racks and installs in minutes.
Pros
- Triple-layer 1000D fabric is twice as strong as 500D material
- Waterproof zipper and double-reinforced seams protect against rain and snow
- Aerodynamic shape reduces wind drag and noise
- Fits vehicles with or without roof racks or crossbars
- Easy installation with clear instructions
Cons
- Soft shell offers less security than a hard shell box
- No lock or security feature listed in specs
- Height of 16.9 inches may limit garage clearance for some vehicles
Good fit if
- You need a budget-friendly soft-shell roof bag for occasional trips
- You want a waterproof carrier that installs quickly without roof bars
- You prioritize lightweight fabric over a rigid shell
Skip if
- You require a hard-shell box for better theft protection
- You need a larger capacity than 15 cubic feet
- You prefer a roof box with a locking mechanism
Verdict: Sailnovo 15 cu ft Soft Shell Roof Bag is a practical choice for drivers who want a waterproof, easy-to-install soft carrier for family road trips, but it lacks the security and rigidity of a hard shell.
Sailnovo 21 cu ft Foldable Roof Box
Best for: large-capacity soft-shell roof storage
- Capacity
- 21 cubic foot
- Water Resistance
- Weatherproof
- Installation
- 6 door hooks and 8 adjustable straps
- Vehicle Compatibility
- Fits most cars with or without roof rack
- Dimensions
- 47 x 35 x 21 inches
- Weight
- 11.3 pounds
This Sailnovo roof box offers 21 cubic feet of storage, enough for 6-8 suitcases plus camping gear. It measures 47 x 35 x 21 inches and weighs 11.3 pounds. The soft-shell bag installs with 6 door hooks and 8 straps, fitting cars with or without roof racks. A non-slip mat and weatherproof construction keep your gear dry and secure. It folds into a compact storage bag for easy transport.
Pros
- 21 cubic foot capacity fits 6-8 suitcases plus tents and sleeping bags
- Includes 6 door hooks and 8 adjustable straps for secure installation on most cars
- Weatherproof with waterproof zipper, reinforced seams, and Velcro flaps
- Anti-slip mat prevents roof scratches and reduces noise
- Folds into a 15 x 11 x 5 inch storage bag for portability
Cons
- Soft-shell design offers less protection than hard-shell boxes
- No built-in locking mechanism; relies on straps and hooks for security
Good fit if
- You need a large, collapsible roof bag for family trips or camping
- You want a roof carrier that works on cars with or without roof racks
- You prioritize easy storage when not in use
Skip if
- You prefer a hard-shell roof box for maximum security and durability
- You need a carrier with a built-in lock for added theft protection
- You want a roof box that mounts without door hooks or straps
Verdict: Sailnovo 21 cu ft Foldable Roof Box offers generous 21 cubic feet of weatherproof storage in a lightweight, foldable design that fits most cars with or without roof racks, making it a practical choice for family trips and camping.
Specifications side by side
| Spec | Sailnovo 21 cu ft Soft Roof Bag | Sailnovo 15 cu ft Foldable Roof Bag | Sailnovo 15 cu ft Waterproof Roof Bag | Sailnovo 20 cu ft Roof Bag | Sailnovo 15 cu ft Soft Shell Roof Bag | Sailnovo 15 cu ft Soft-Shell Roof Bag | Sailnovo 15 cu ft Soft Shell Roof Bag | Sailnovo 21 cu ft Foldable Roof Box |
|---|---|---|---|---|---|---|---|---|
| Capacity | 21 cubic feet | 15 cubic feet / 470L | 15 cubic feet/430 L | 20 cu ft / 580L | 15 cubic feet / 430 L | 15 cubic feet / 430 L | 15 Cubic Feet / 430L | 21 cubic foot |
| Shell Type | Soft Shell | foldable roof bag | Soft Shell | 1000D waterproof PVC | Soft shell | Soft shell (1000D fabric) | Soft shell | not specified |
| Water Resistance | Waterproof | Waterproof | Waterproof | Waterproof | not specified | not specified | Waterproof | Weatherproof |
| Installation | Tie-Down Strap | not specified | not specified | Straps, door hooks, non-slip mat | not specified | 2 reinforced straps, 4 door hooks | Easy to set up for most vehicles | 6 door hooks and 8 adjustable straps |
| Vehicle Compatibility | not specified | not specified | not specified | With or without roof bars | Fits most cars with or without roof rack | Fits most cars with or without roof rack | not specified | Fits most cars with or without roof rack |
| Dimensions | 9.84 x 7.09 x 13.8 in | 41 x 35 x 17 in | 14.2 x 9.45 x 7.48 in | 51 x 39 x 17 in | 9.84 x 6.89 x 13.4 in | 9.84 x 6.69 x 13.4 in | 40.9 x 35.8 x 16.9 in | 47 x 35 x 21 inches |
| Vehicle Type | Car | not specified | Car | Car | Car | Car | Car | Car |
| Size | 21 Cubic Feet | 15 pieds cubes / 470L | 15 cubic feet/430 L | 20 Cubic Feet | 15 cubic feet/430 L | 15 Cubic Feet | 15 Cubic Feet | 21 Kubikfuß |
| Mount Type | Roof Mount | not specified | Roof Mount | not specified | not specified | not specified | not specified | not specified |
| Weight | 8.16 pounds | 5.34 pounds | not specified | 8.93 pounds | 5.95 pounds | 5.6 pounds | not specified | 11.3 pounds |
| Color | Black | Black & Red | black | Orange | Orange | Grey | Grey | orange |
| Model | Sailnovo5033-FR | Sailnovo5033-FR | AMD005033 | *#ASMD005033_2_M_V1 | #ASMD005033_2_S_V1 | #ASMD005033_S_V1 | 5033_S_V1_1906 | #*#*WWD005286_M |
Sailnovo Roof Cargo Box Models
Sailnovo offers eight soft-shell roof bags and one foldable carrier. The lineup ranges from 15 to 21 cubic feet. You can choose between compact 15-cubic-foot options like the Sailnovo 15 cu ft Waterproof Roof Bag or larger 21-cubic-foot models such as the Sailnovo 21 cu ft Soft Roof Bag. All units use waterproof materials and tie-down straps. They fit cars with or without roof racks. The foldable Sailnovo 21 cu ft Foldable Roof Box provides extra rigidity while remaining lightweight. Most models weigh under nine pounds. This makes them easy to store and install. You get weather protection without the bulk of hard plastic boxes. These carriers are ideal for occasional trips or seasonal gear. They prioritize portability and simple mounting over high-security locking systems. Choose based on your cargo volume needs and whether you prefer a traditional soft bag or a foldable design.
Where Sailnovo Fits Your Needs
Sailnovo specializes in soft-shell roof bags for cars. The range spans 15 to 21 cubic feet. Most models weigh under nine pounds. You get flexible, waterproof storage that installs without roof racks. The lineup includes black, orange, and grey options. One model offers a larger 470-liter capacity. You will not find rigid hard-shell boxes or integrated locking mechanisms in this specific collection. This brand suits drivers who need lightweight, portable cargo space for occasional trips or family travel. It is ideal for vehicles without permanent crossbars.
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How to Choose the Right Sailnovo Roof Bag
-
Check the shell material type
You must decide between soft-shell flexibility and hard-shell security. All models in this list use soft shells or foldable fabric. This design allows you to store the bag flat when not in use. The Sailnovo 21 cu ft Foldable Roof Box offers 21 cubic feet of space in a lightweight package. Soft shells conform to your roof line. You lose the rigid protection of a hard plastic box. This choice favors drivers who prioritize storage convenience over maximum theft deterrence.
-
Match capacity to your cargo
Capacity ranges from 15 to 21 cubic feet in this lineup. A 15-cubic-foot bag suits weekend trips with moderate gear. The Sailnovo 15 cu ft Waterproof Roof Bag provides 430 liters of space. If you need extra room for family vacations, look at the 21-cubic-foot options. The Sailnovo 21 cu ft Soft Roof Bag offers generous volume. Choose the size that fits your typical load. Do not overload any bag beyond its rated cubic footage. Proper loading ensures stability and safe driving dynamics on the road.
-
Verify vehicle compatibility
These bags are designed for cars with or without roof racks. You can install them using tie-down straps directly to the vehicle. This feature makes them versatile for many drivers. The Sailnovo 15 cu ft Soft Shell Roof Bag works on most cars. Check your vehicle roof dimensions before buying. Ensure your roof can handle the added weight and wind resistance. Soft bags distribute pressure differently than hard boxes. Confirm your car roof is clean and smooth for a secure fit.
-
Consider weight and portability
Weight affects how easy it is to handle and store. Most bags in this list weigh under nine pounds. The Sailnovo 15 cu ft Foldable Roof Bag is very light at 5.34 pounds. This makes it easy to lift onto the roof. Heavier options like the 21 cu ft Foldable Roof Box weigh 11.3 pounds. A lighter bag is easier to store in your garage. Compare the weight specs to your physical comfort level. Lighter bags offer better portability for frequent travelers.
-
Ensure waterproof protection
Water resistance keeps your gear dry during rain. All listed models feature waterproof construction. The Sailnovo 20 cu ft Roof Bag uses heavy-duty PVC material. This material blocks moisture effectively. Check for sealed seams and waterproof zippers. Proper installation is key to maintaining water resistance. Ensure all straps are tight to prevent flapping. Flapping can damage the fabric and compromise the seal. Regularly inspect the bag for wear. Good maintenance ensures long-term waterproof performance for your cargo.
Frequently asked questions
Can I install a Sailnovo roof bag without roof racks?
Yes, you can. All models in this list are designed for cars with or without roof racks. They use a secure tie-down system to attach directly to the vehicle. This allows you to add cargo space to any car, regardless of existing hardware. The soft-shell design adapts to the roof shape for a stable fit.
What is the largest capacity Sailnovo roof bag available?
The largest capacity is 21 cubic feet. You can find this size in the Sailnovo 21 cu ft Soft Roof Bag and the Sailnovo 21 cu ft Foldable Roof Box. These models offer generous storage for large family trips or camping gear. They provide more volume than the standard 15-cubic-foot options in the lineup.
How heavy are the Sailnovo roof cargo bags?
The weights range from 5.34 pounds to 11.3 pounds. The lightest model is the 15 cu ft Foldable Roof Bag at 5.34 pounds. Heavier options include the 20 cu ft Roof Bag at 8.93 pounds and the 21 cu ft Foldable Roof Box at 11.3 pounds. Most models weigh under nine pounds for easy handling.
Are Sailnovo roof bags waterproof?
Yes, they are designed to be waterproof. The products use waterproof materials like PVC or treated fabric to protect your cargo from rain and snow. This feature is consistent across the soft-shell and foldable options. You can trust them to keep your items dry during outdoor travel and road trips.
What colors are available for Sailnovo roof bags?
You can choose from black, orange, and grey. The 21 cu ft Soft Roof Bag and 15 cu ft Waterproof Roof Bag come in black. Orange options include the 20 cu ft Roof Bag and the 15 cu ft Soft Shell Roof Bag. Grey is available for the 15 cu ft Soft-Shell and 15 cu ft Soft Shell models.
Can I fold and store a Sailnovo roof bag when not in use?
Yes, the soft-shell and foldable designs allow for compact storage. You can fold the bags flat to save space in your garage or trunk. This feature makes them practical for occasional use. The foldable mechanism works well for the 15 cu ft and 21 cu ft models, ensuring easy transport and storage.
What is the difference between a soft shell and a hard shell?
Soft shells are flexible fabric bags that tie down to the roof. Hard shells are rigid plastic boxes that lock onto roof racks. All Sailnovo models listed here are soft-shell or foldable. They lack the rigidity and locking security of hard boxes but offer flexibility and lower weight for cars without racks.