VENTURE 4TH Rooftop Cargo Carrier - 21 Cubic Feet Waterproof Roof Bag

In this review of the VENTURE 4TH Rooftop Cargo Carrier, the bottom line is simple: it is a practical, weatherproof solution for weekend road trips and family vacations where extra luggage space is needed. The carrier shines for people who want a durable, no-fuss top-of-car bag that keeps gear dry and stays put during transit. Installation is straightforward and the included accessories make it ready to use out of the box, so the biggest reason to buy is reliable, waterproof storage that folds away for off-season storage.

Key Features

• Waterproof construction: Military-grade PVC fabric combined with waterproof SBS zippers and a protective flap keeps luggage dry in rain and splashes.
• Large capacity: The 21 cu ft size is rated to hold up to 10 carry-on bags, making it useful for multi-person trips without rooftop boxes.
• Lifetime replacement guarantee: The lifetime replacement policy provides long-term peace of mind if defects occur.
• Secure hardware: Heavy-duty cam buckles, reinforced stitching, and rust-resistant hooks provide reliable attachment and reduce the chance of shifting while driving.
• Universal fit: Includes door hooks, color-coded tie-down and compression straps for installation with or without roof racks, crossbars, or sidebars.
• Complete travel set: Comes with a protective roof mat, extra straps, combination padlock, instructions, and storage bag so no additional purchases are required.

Who It's For

The carrier is ideal for families or groups who need extra cargo space for weekend getaways, outdoor gear, or bulky luggage and want a waterproof soft-shell option that packs away when not in use. Those who value easy installation will appreciate the color-coded straps and included door hooks and mat.

It is not recommended for vehicles with sunroofs, panoramic glass roofs, or glass tops, or for very small cars where the bag may overhang. Also check that door hooks can reach your car's metal frame and that crossbar spacing meets the minimum requirement before purchase.

Pros & Cons

Pros

• Durable, military-grade PVC and waterproof zippers give strong protection against wet weather.
• Good storage capacity for carry-on bags and bulky items while still folding down for storage.
• Hardware and straps are built for dependable attachment and long-term use.
• The package includes a roof mat, padlock, extra straps, and a storage bag for a complete solution.

Cons

• Not suitable for vehicles with glass roofs or some sealed rubber door seals, so fit needs to be verified before purchase.
• Opinions on actual usable room vary; some users find capacity smaller than expected depending on packing style.

Specifications

Capacity	21 cu ft
Material	Military-grade PVC fabric
Zippers	Waterproof SBS zippers with protective flap
Hardware	Heavy-duty cam buckles, reinforced stitching, rust-resistant hooks
Included accessories	Protective roof mat, extra straps, combination padlock, instruction manual, storage bag
Fit	Universal fit; works with or without roof racks, crossbars, or sidebars
Guarantee	Lifetime replacement guarantee

Our Verdict

The VENTURE 4TH rooftop cargo carrier is a sensible option for travelers who need weatherproof, temporary roof storage without committing to a hard box. It delivers solid protection, straightforward installation, and useful included accessories, making it good value for families or frequent road trippers who verify fit first.

Frequently Asked Questions

Will this work on a car with crossbars?
Yes; it supports installation with crossbars provided the bar spacing meets the minimum requirement and you use the supplied straps.

Is it really waterproof?
Yes; the PVC fabric, waterproof SBS zippers, and protective flap are designed to keep contents dry in rainy conditions.

Can it be used on cars with sunroofs?
No; it is not suitable for vehicles with sunroofs, panoramic roofs, or glass tops and should not be used in those cases.