Car Rooftop Cargo Carrier Bag 20 Cubic Feet - Waterproof Soft Shell

Our review of the Sailnovo Car Rooftop Cargo Carrier Bag finds it best for families and small groups who need a simple, high-capacity luggage solution for road trips. The single biggest reason to buy is the 20 cubic feet capacity that frees up interior space while remaining a foldable soft-shell that stores easily when not in use. Installation is straightforward on most cars and SUVs, and the combination of reinforced straps and heavy-duty door hooks generally keeps the bag secure on highways.

Key Features

• Large capacity: The 20 cubic ft size (51 in x 39 in x 17 in) holds luggage for 6-8 people, reducing crowding inside the vehicle.
• Waterproof lining: A triple-layer military-grade 1000D PVC lining under the Oxford outer fabric helps protect belongings from rain and splashes.
• Secure fit: Six sewn-in reinforced straps plus six heavy-duty door hooks and two adjustable straps give multiple attachment points for stability.
• Wind protection: The extended waterproof flap and reinforced sealing strips reduce wind intrusion, dust, and road noise at speed.
• Foldable design: As a soft-shell carrier it folds for compact storage when not in use, unlike a hard-shell rooftop box.

Who It's For

The carrier is ideal for families, weekend campers, and travelers who need extra cargo space without committing to a permanent roof box; the streamlined design suits highway driving for SUVs and many sedans. It works well when you need a large, temporary storage solution for luggage, camping gear, or bulky items like a folding picnic table.

It is not appropriate for owners of two-door cars, vehicles with sliding doors, panoramic roofs, or non-removable door seals, and users must respect their vehicle roof weight limits. If you need a fully rigid, impact-resistant case or plan to carry sharp objects, consider a hard-shell alternative.

Pros & Cons

Pros

• Excellent capacity that clears interior space for passengers on long trips.
• Robust attachment system with multiple straps and door hooks for secure mounting.
• Good value for the storage and materials provided; folds away for easy storage.
• Streamlined shape that reduces wind resistance and road noise compared with ungainly loading.

Cons

• Waterproofing and long-term durability receive mixed feedback; performance may vary in extreme weather.
• Not suitable for vehicles with sliding doors, panoramic roofs, or two-door configurations.

Specifications

Our Verdict

The Sailnovo rooftop cargo carrier is a practical, budget-friendly way to add substantial luggage space for families and groups without a permanent roof box. Its large 20 cubic ft capacity, reinforced straps, and waterproof lining make it a sensible choice for road trips, provided you follow roof weight limits and avoid placing sharp objects inside. For those who need a foldable, high-capacity solution, it represents good value.

Frequently Asked Questions

Will this fit my sedan roof?
It fits most sedans and SUVs when the roof area is at least 58 in long and 42 in wide; measure first to confirm.

Is it truly waterproof?
The triple-layer 1000D PVC lining offers strong waterproofing for normal rain, but extreme weather may compromise performance.

Can it be used without a roof rack?
Yes, the included straps and door hooks allow installation with or without an existing roof rack on compatible vehicles.