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Sailnovo Car Rooftop Cargo Carrier vs Sailnovo Cargo Carrier: Spec Comparison

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When you compare the sailnovo car rooftop cargo carrier vs cargo carrier, you see two soft-sided options from the same brand. Both use waterproof material and attach directly to your roof. The main difference lies in their design and capacity. One is a compact 21 cubic foot bag, while the other is a larger 15 cubic foot foldable bag. You need to decide which size and shape best fit your vehicle and travel needs.

Key differences

AspectSailnovo 21 cu ft Soft Roof BagSailnovo 15 cu ft Foldable Roof Bag
Capacity21 cubic feet15 cubic feet
Dimensions9.84 x 7.09 x 13.8 in41 x 35 x 17 in
Weight8.16 pounds5.34 pounds
Shell TypeSoft ShellFoldable roof bag

Which one should you choose?

Choose Sailnovo 21 cu ft Soft Roof Bag if

  • You need maximum storage space for long trips.
  • You prefer a smaller footprint when not in use.
  • You want a standard soft shell design.

Choose Sailnovo 15 cu ft Foldable Roof Bag if

  • You prioritize a lighter product for easier handling.
  • You need a larger overall footprint for bulky items.
  • You want a foldable design for compact storage.

Verdict: Choose the 21 cubic foot model if you need more volume for luggage. Pick the 15 cubic foot foldable bag if you value lighter weight and a larger base footprint. Both offer waterproof protection for your gear.

Sailnovo Soft Roof Bags Compared

Capacity and Size

Edge: Sailnovo 21 cu ft Soft Roof Bag

The Sailnovo 21 cu ft Soft Roof Bag offers 21 cubic feet of storage space. Its dimensions are 9.84 x 7.09 x 13.8 inches. The Sailnovo 15 cu ft Foldable Roof Bag provides 15 cubic feet, or 470 liters. Its dimensions are 41 x 35 x 17 inches. The 21 cu ft model has a smaller footprint but similar height to the 17-inch variant. The 15 cu ft model is much wider and longer. You get more volume with the 21 cu ft option, but the 15 cu ft bag covers a broader roof area.

Weight

Edge: Sailnovo 15 cu ft Foldable Roof Bag

Weight matters when you carry the bag to your car. The Sailnovo 21 cu ft Soft Roof Bag weighs 8.16 pounds. The Sailnovo 15 cu ft Foldable Roof Bag weighs 5.34 pounds. The 15 cu ft model is significantly lighter. You will find it easier to lift and position the 15 cu ft bag on your roof rack. The 21 cu ft bag is heavier, which might make handling slightly more difficult for some users.

Shell Type

Edge: Tie

Both products use soft shell designs. The Sailnovo 21 cu ft model is listed as a Soft Shell. The Sailnovo 15 cu ft model is described as a foldable roof bag. Both are soft-sided carriers. They do not have hard plastic or metal shells. This means they conform to your roof rack bars. You need to ensure your roof has crossbars or side rails to attach them securely. Neither offers rigid protection for your cargo.

Water Resistance

Edge: Tie

Both bags are designed to keep your gear dry. The Sailnovo 21 cu ft Soft Roof Bag is labeled as Waterproof. The Sailnovo 15 cu ft Foldable Roof Bag is also Waterproof. You can expect both to resist rain and moisture. This is essential for rooftop storage. Neither product mentions a specific IP rating. You should still cover sensitive items with a dry bag inside for extra protection during heavy storms.

Installation Method

Edge: Sailnovo 21 cu ft Soft Roof Bag

The Sailnovo 21 cu ft Soft Roof Bag uses tie-down straps for installation. The Sailnovo 15 cu ft Foldable Roof Bag does not list its specific installation method in the provided data. Soft bags typically use straps or hooks. You will need to secure the 21 cu ft bag with straps around your roof rack. For the 15 cu ft bag, you will likely use a similar strap-based system. Check the manual for exact attachment points.

Which Sailnovo Roof Bag Fits You

Heavy load travelers needing max space

Our pick: Sailnovo 21 cu ft Soft Roof Bag

You should choose the 21 cubic feet model if you need extra room for luggage. Its larger capacity holds more gear than the 15 cubic feet option. The 8.16 pound weight is manageable for most vehicles. You get waterproof protection for your items without adding excessive bulk to your roof rack system.

Budget conscious users seeking lighter weight

Our pick: Sailnovo 15 cu ft Foldable Roof Bag

The 15 cubic feet bag weighs only 5.34 pounds. This makes it easier to lift onto your roof. You save weight compared to the heavier 21 cubic feet alternative. The foldable design allows for compact storage when not in use. You still get waterproof protection for your cargo during travel.

Those needing compact storage dimensions

Our pick: Sailnovo 21 cu ft Soft Roof Bag

This model measures 9.84 x 7.09 x 13.8 inches. These dimensions fit smaller roof spaces better than the larger alternative. You can mount it on cars with limited roof area. The soft shell design conforms to your roof shape. You maintain stability while carrying essential items securely on your vehicle.

The products compared

Sailnovo 21 cu ft Soft Roof Bag

Best for: Cars without roof racks needing flexible storage

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

View on Amazon: Sailnovo 21 cu ft Soft Roof Bag Affiliate link

This is a soft-shell roof cargo bag with 21 cubic feet of capacity. It measures 9.84 x 7.09 x 13.8 inches and weighs 8.16 pounds. The bag uses tie-down straps for installation and offers waterproof protection. It fits cars without roof racks. You can use it to carry extra gear on trips where hard cases are not suitable.

Pros

  • 21 cubic feet of storage capacity
  • Waterproof soft-shell design
  • Lightweight at 8.16 pounds
  • Fits vehicles without roof racks

Cons

  • Soft shell offers less security than hard cases
  • Requires manual tie-down strap installation
  • Lower capacity than the 15 cubic foot rigid alternative on this list

Good fit if

  • You drive a car without roof racks
  • You need flexible storage for irregular items
  • You want a lightweight carrier under 9 pounds

Skip if

  • You need maximum theft protection
  • You prefer rigid shell construction
  • You require a hard case for aerodynamic efficiency

Verdict: Sailnovo 21 Cu Ft Soft Roof Bag is a practical soft-shell option for cars without racks. It suits buyers who need flexible, waterproof storage that does not require roof rails.

Sailnovo 15 cu ft Foldable Roof Bag

Best for: Lightweight, foldable storage needs

Capacity
15 cubic feet / 470L
Shell Type
foldable roof bag
Water Resistance
Waterproof
Dimensions
41 x 35 x 17 in
Weight
5.34 pounds

View on Amazon: Sailnovo 15 cu ft Foldable Roof Bag Affiliate link

This Sailnovo cargo carrier is a foldable roof bag with 15 cubic feet (470L) of capacity. Its dimensions are 41 x 35 x 17 inches, and it weighs 5.34 pounds. The design is waterproof and comes in black and red. You should consider this option if you need lightweight storage that folds flat for easy transport and storage when not in use.

Pros

  • 15 cubic feet / 470L capacity
  • Lightweight at 5.34 pounds
  • Foldable design for compact storage
  • Waterproof construction

Cons

  • Smaller 15 cubic feet capacity compared to rigid boxes
  • Soft shell offers less impact protection than hard plastic
  • Foldable fabric may be more susceptible to wear over time

Good fit if

  • You need a lightweight carrier that folds flat for storage
  • You have a smaller vehicle with lower weight limits
  • You want a waterproof solution for occasional trips

Skip if

  • You require maximum security and impact protection
  • You need more than 15 cubic feet of space
  • You prefer a rigid, aerodynamic hard shell design

Verdict: Sailnovo 15 cu ft Foldable Roof Bag is a practical choice for travelers who prioritize low weight and compact storage over maximum capacity and rigid protection.

Specifications side by side

Spec Sailnovo 21 cu ft Soft Roof Bag Sailnovo 15 cu ft Foldable Roof Bag
Capacity 21 cubic feet 15 cubic feet / 470L
Shell Type Soft Shell foldable roof bag
Water Resistance Waterproof Waterproof
Installation Tie-Down Strap not stated
Dimensions 9.84 x 7.09 x 13.8 in 41 x 35 x 17 in
Vehicle Type Car not stated
Size 21 Cubic Feet 15 pieds cubes / 470L
Mount Type Roof Mount not stated
Weight 8.16 pounds 5.34 pounds
Color Black Black & Red
Model Sailnovo5033-FR Sailnovo5033-FR

Frequently asked questions

Do Sailnovo soft roof bags require roof racks?

No, these carriers are designed for cars without roof racks. They use a roof mount system that attaches directly to the vehicle. This makes them flexible for various car types. You do not need existing rails or crossbars to install them. The design allows for easy setup on flat roof surfaces.

What is the weight difference between the two models?

The 21 cu ft model weighs 8.16 pounds. The 15 cu ft foldable version weighs 5.34 pounds. The larger bag is heavier due to its increased material and structure. You should choose the lighter option if weight is a primary concern for your travel needs.

Are these carriers waterproof?

Yes, both models feature waterproof material. They are designed to protect your gear from rain and moisture. The soft shell construction ensures durability while keeping contents dry. You can trust them for outdoor travel in various weather conditions without worrying about water damage to your luggage.

Can I fold the 21 cu ft bag for storage?

The data does not specify foldability for the 21 cu ft model. It is described as a soft shell option. The 15 cu ft model is explicitly labeled as foldable. If compact storage is essential, the foldable 15 cu ft version is the clearer choice based on available specifications.

What are the dimensions of the 15 cu ft bag?

The 15 cu ft bag measures 41 inches in length, 35 inches in width, and 17 inches in height. These dimensions provide a substantial footprint for your cargo. The larger surface area helps distribute weight evenly across your roof. Check your vehicle roof size to ensure proper fit.

Which model is better for lightweight travel?

The 15 cu ft Foldable Roof Bag is better for lightweight travel. It weighs only 5.34 pounds, making it easier to handle. Its compact nature also aids in storage when not in use. You get practical storage without the extra weight of the larger 21 cu ft alternative.

Is the 21 cu ft bag suitable for small cars?

The 21 cu ft bag is suitable for cars without roof racks. However, its dimensions are 9.84 x 7.09 x 13.8 inches in its packed state. Ensure your car roof can support the load. It is designed for flexible storage needs rather than maximum aerodynamic efficiency. Verify clearance for your specific vehicle model.

What color options are available for these carriers?

The 21 cu ft model comes in black. The 15 cu ft model is available in black and red. Color choice is limited to these two options. Black offers a neutral look, while the black and red option provides a distinct appearance. Select the color that matches your preference and vehicle style.

See also