Sailnovo 20 Cubic Feet/580L Car Review: Specs, Pros and Cons
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In this sailnovo 20 cubic feet 580l car review, we look at a soft-sided roof cargo bag designed for flexible storage. This product holds 580 liters of gear, fitting luggage for five to eight people. Its outer shell is made from tear-resistant 1000D waterproof PVC, which helps protect your belongings from rain and snow. The bag measures 51 by 39 by 17 inches, making it suitable for vehicles with roof bars 51 inches or longer. It weighs 8.93 pounds when empty, allowing for easy handling. This review focuses on how these specifications impact your daily travel needs and cargo capacity.
What stands out
- 20 cubic feet (580L) of total storage volume for large families.
- Three-layer 1000D waterproof PVC lining with a 13cm rain curtain.
- Universal fit for vehicles with or without existing roof bars.
- Includes six reinforced straps and six safety door hooks for security.
- Aerodynamic shape reduces wind noise and improves fuel efficiency.
Who it fits
Good fit for
You should consider this roof bag if you drive a car, SUV, or pickup without permanent roof racks. The strap-based installation system allows you to attach it directly to the vehicle body. It is ideal for occasional travelers who need extra space for family getaways or international trips. The waterproof construction suits those who frequently drive in rain or snow. You will appreciate the easy storage in its included bag when the cargo is not in use.
Who should skip it
Skip this option if you need a hard-shell box for high-speed highway driving. Soft bags are more susceptible to wind lift and noise at speeds above 60 mph. You should also avoid this if you require rigid protection for fragile items, as the PVC material offers less impact resistance than plastic or aluminum. If you already have a robust rack system, a traditional hard box may provide better security and aerodynamics for your specific vehicle setup.
Verdict: The Sailnovo roof bag offers substantial 580L capacity for vehicles lacking permanent racks. It is a practical, waterproof solution for occasional family travel needs.
Sailnovo Roof Bag Key Specs
Capacity: 20 cu ft / 580L
This volume holds gear for five to eight people. It matches the size of many hard-shell roof boxes, offering substantial storage for family trips. You can fit large suitcases or camping equipment inside. If you need flexible volume that folds away, this capacity provides ample room without the permanent bulk of a rigid carrier on your vehicle.
Dimensions: 51 x 39 x 17 in
These measurements define the internal space and footprint. The 51-inch length suits vehicles with roof bars or crossbars of that length or longer. The 17-inch height allows you to stack items vertically. Compare these dimensions to your vehicle’s roof area to ensure the bag does not overhang excessively or interfere with door clearance when loading.
Shell Type: 1000D waterproof PVC
The outer material uses a high-density, tear-resistant fabric that blocks water. This construction protects your luggage from rain and snow during transit. Unlike fabric bags with lower denier ratings, this 1000D lining offers robust durability against road debris. It ensures your belongings stay dry, reducing the need for additional internal waterproofing for most weather conditions.
Installation: Straps, door hooks, non-slip mat
This system secures the bag to your vehicle without permanent mounting. The non-slip mat protects your car’s paint and prevents shifting. Straps and door hooks lock the bag in place. This method allows installation on vehicles with or without existing roof racks, making it a versatile option for drivers who lack factory-installed crossbars or side rails.
Design and build materials
The listing describes a soft-sided shell constructed from tear-resistant 1000D waterproof PVC. This three-layer lining includes a 13cm extended rain curtain. You should expect reliable protection in rain or snow. The manufacturer advises using extra dry bags for clothes in extreme weather to prevent leakage. This material choice keeps the unit lightweight at 8.93 pounds, making it easier to handle than rigid plastic boxes.
The design features an aerodynamic shape to reduce wind noise and improve fuel efficiency compared to square bags. Dimensions are listed as 51 by 39 by 17 inches. This size fits vehicles with roof bars 51 inches or longer. The listing notes universal compatibility with cars, SUVs, pickups, and station wagons. It works with or without existing roof racks.
Security relies on six reinforced straps, two long adjustable tie-down straps, and six safety door hooks. A non-slip mat with a reflective strip sits between the bag and the vehicle. This mat improves night-time visibility. The layout prioritizes flexibility. You can fold the bag into its included storage bag when not in use. This saves space in your garage and reduces fuel consumption during daily driving. The orange color provides high visibility. Installation takes minutes using the provided hardware. No tools are required for setup according to the listing.
Setup, Compatibility and Daily Use
You install this roof bag using straps, door hooks, and a non-slip mat. The design allows it to fit vehicles with or without existing roof bars. This flexibility means you do not need crossbars to secure the load. The six reinforced straps and two long adjustable straps provide the primary tension. Six safety door hooks anchor the unit to the vehicle frame. A non-slip mat sits between the bag and the car roof. This mat includes a reflective strip to improve night-time visibility. You should ensure the vehicle roof is at least 51 inches long. The 51 by 39 by 17 inch dimensions require adequate space. The aerodynamic shape adapts to driving wind speeds. This design aims to reduce noise and improve fuel efficiency compared to square bags. Daily use involves loading gear into the waterproof PVC shell. The 1000D lining keeps items dry in rain or snow. You can fold the bag into its storage bag when not in use. This feature saves trunk space and may offer fuel savings. The package includes a storage bag and user manual. You attach the bag in minutes. Removing it for storage is equally straightforward. The soft construction allows it to conform to various roof contours. You must keep clothes in extra dry bags during extreme weather to prevent leakage. The setup process relies entirely on the included hardware. No tools are mentioned for installation. You simply tighten the straps to secure the load. The non-slip mat helps prevent shifting during travel. This system provides a stable platform for your cargo. You can use it for family getaways or international travels. The capacity supports five to eight people. The ease of removal makes it convenient for occasional trips.
Before You Buy This Roof Bag
This soft-sided carrier offers flexibility that hard boxes cannot match. You do not need roof bars to install it, which saves money if your car lacks racks. However, you must check your roof’s load limit. The bag weighs roughly nine pounds, but the gear inside adds significant weight. Ensure your vehicle can handle the total mass plus wind resistance. Keep the storage bag handy. You will need it to fold the bag for off-season storage. This saves trunk space and improves fuel efficiency when not in use. Clean the PVC lining after muddy trips to prevent mold. Compare this option against hard-shell carriers. Choose this if you need occasional extra space without permanent roof hardware. It suits travelers who value packability over rigid protection. Always secure the six straps tightly before driving. Check the non-slip mat for wear. Replace it if it loses grip. This ensures your cargo stays safe on long highways.
Check before you buy
- Verify your vehicle's roof weight limit before loading.
- Ensure the roof surface is clean for the non-slip mat.
- Check that your roof bars are at least 51 inches long if present.
- Confirm you have space for the storage bag in your trunk.
The product at a glance
Sailnovo 20 cu ft Roof Bag
Best for: vehicles without roof bars
- 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
View on Amazon: Sailnovo 20 cu ft Roof Bag Affiliate link
This Sailnovo roof bag offers 20 cubic feet (580L) of storage in a soft-shell design. It measures 51 x 39 x 17 inches and weighs 8.93 pounds. The 1000D PVC shell is waterproof with a rain curtain. It installs via straps and door hooks, fitting vehicles with or without roof bars. You can use it for family trips or moving items while saving fuel with its aerodynamic shape.
Pros
- 20 cubic feet (580L) capacity holds luggage for 5-8 people
- 1000D waterproof PVC shell with 13cm rain curtain
- Fits vehicles with or without roof bars
- Aerodynamic shape improves fuel efficiency
- Includes non-slip mat with reflective strip
Cons
- Soft-shell design is less rigid than hard plastic boxes
- Installation relies on straps and hooks rather than a fixed rack system
- No mention of integrated locking mechanisms for security
Good fit if
- You need extra storage for a family road trip
- Your vehicle lacks roof bars or side rails
- You want a lightweight carrier that folds for storage
Skip if
- You require a rigid, hard-shell cargo box
- You need integrated locking security features
- You prefer a carrier that mounts directly to factory rails
Verdict: Sailnovo 20 cu ft Roof Bag is a practical, waterproof storage solution for drivers without roof bars who need flexible capacity for family travel or moving items.
Specifications side by side
| Spec | Sailnovo 20 cu ft Roof Bag |
|---|---|
| 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 |
| Vehicle Type | Car |
| Size | 20 Cubic Feet |
| Weight | 8.93 pounds |
| Color | Orange |
| Model | *#ASMD005033_2_M_V1 |
Frequently asked questions
Does the Sailnovo 20 cu ft roof bag work without roof bars?
Yes, this carrier is designed for vehicles without roof bars. It uses straps, door hooks, and a non-slip mat for installation. This flexibility allows you to secure the bag directly to your car’s roof. You do not need crossbars to attach it, making it suitable for many car types.
How much does the Sailnovo 20 cu ft roof bag weigh?
The bag weighs 8.93 pounds. This lightweight design helps you handle the carrier easily during setup. It does not add significant burden to your vehicle’s roof load. You can manage the installation process without needing extra assistance or heavy lifting equipment.
What are the dimensions of the Sailnovo 20 cu ft roof bag?
The listing provides specific dimensions for the packaged unit. The length is 11.8 inches, the width is 7.48 inches, and the height is 14.4 inches. These measurements refer to the box it arrives in, not the deployed bag size. The deployed capacity is 20 cubic feet.
What color is the Sailnovo 20 cu ft roof bag?
The product is available in orange. This bright color improves visibility on the road. It helps other drivers notice the cargo on your roof more easily. This feature adds a layer of safety during your travels by making the load more distinct from your vehicle.
Is the Sailnovo 20 cu ft roof bag waterproof?
Yes, the outer shell is made from tear-resistant 1000D waterproof PVC. It includes a three-layer lining with a 13cm extended rain curtain. This design provides reliable protection against rain and snow. You can trust it to keep your gear dry during wet weather conditions.
What type of vehicle is the Sailnovo 20 cu ft roof bag best for?
It is best for cars that lack roof bars. The design allows it to fit vehicles with or without existing roof racks. This makes it a practical solution for drivers who need flexible storage without installing permanent hardware. It suits family travel or moving items efficiently.