Mockins XXL 50 Cu Ft Review: Specs, Pros and Cons

What stands out

• 50 cubic feet of internal volume for large items
• 840D vinyl shell with heat-welded seams for durability
• No roof rack required; uses included straps and hooks
• Waterproof zippers hidden under Velcro flaps
• Includes combo lock and storage bag for transport

Who it fits

Key specs explained for you

Capacity: 50 cu ft

This volume tells you how much gear fits inside. Fifty cubic feet is a large amount of space, suitable for multiple suitcases, tents, or sleeping bags. You can pack more items than with smaller carriers. Compare this number to other soft bags to ensure it holds your specific luggage volume without overstuffing the shell.

Dimensions: 85 x 50 x 20 in

These measurements define the physical size of the bag on your roof. The eighty-five-inch length is substantial, so you must check your vehicle roof to ensure it fits without overhang. The fifty-inch width and twenty-inch height determine how much clearance you have for garages. Verify these numbers against your car roof dimensions before buying.

Shell Type: Soft-shell

This indicates the material is flexible fabric rather than hard plastic. A soft shell conforms to your roof shape and is easier to store when not in use. It generally weighs less than hard cases. You can fold it into a storage bag for off-season storage. This type is ideal if you do not need a rigid structure.

Vehicle Compatibility: No roof rack needed

This means the carrier attaches directly to your vehicle using straps and hooks. You do not need to install expensive crossbars or side rails. This feature is useful for older cars or vehicles without factory racks. You can use the included hardware to secure the bag to your door frames or trunk edges for immediate use.

Design and Build Quality

The Mockins XXL 50 Cu Ft roof bag uses a soft-shell design built from 840D vinyl. According to the listing, this material is thick and abrasion-resistant. The seams are heat-welded to prevent leaks. This construction choice means the carrier can handle rain, snow, and highway grit without water entering the storage area. The exterior finish is black, which helps it blend with most vehicle roofs. The soft material allows the bag to conform slightly to your car’s shape, reducing wind noise compared to rigid boxes.

Size is the main feature here. The carrier measures 85 inches long, 50 inches wide, and 20 inches high. This provides 50 cubic feet of total volume. The length is significant, so you must check your vehicle’s roof space. It fits SUVs and vans well, but may overhang on smaller sedans. The bag weighs 19 pounds. This weight is manageable for one person to lift onto the roof, though two people may find it easier.

The layout includes a waterproof zipper system. The zipper pulls stay under a Velcro flap for extra protection. This design keeps dirt and moisture out of the main compartment. The carrier does not require a roof rack. It uses buckle straps, ratchet straps, and hooks that attach to door frames. This makes it a versatile option for vehicles without existing cargo systems. The storage bag keeps all straps organized when not in use.

Setup And Everyday Use

Setup is straightforward because this carrier does not require a roof rack. The listing includes everything you need to secure the bag to your vehicle. You get three ratchet straps, three buckle straps, and eight hooks. These components allow you to attach the carrier to door frames or trunk edges. An anti-slip mat sits between the bag and your car’s roof. This mat helps keep the carrier steady at highway speeds and protects your paint from scratches. The bag itself weighs 19 pounds, which makes handling it manageable for most people. You can roll the bag up and store it in the included storage bag after your trip. This feature adds convenience for storage in your garage or trunk. The 85-inch length means you should check your vehicle’s roof size before buying. It fits SUVs and vans well, but may overhang smaller cars. The waterproof zippers are tucked under a Velcro flap. This design keeps rain and snow out of your gear. You do not need to worry about water entering through the zipper track during heavy storms. The 10-year warranty suggests the manufacturer expects the materials to last. The 840D vinyl shell is thick and abrasion-resistant. This means it can handle road grit and minor impacts without tearing. Daily use involves packing your gear into the 50 cubic feet of space. You can fit tents, sleeping bags, and suitcases inside. The soft-shell design conforms to your cargo, so you can pack items tightly. When you are ready to drive, you simply tighten the straps and ensure the hooks are secure. The setup takes only a few minutes once you are familiar with the process.

Before You Buy This Carrier

Owning this carrier means managing a large, flexible load. You must verify your vehicle’s roof can support the weight and dimensions. The 85-inch length may overhang significantly on smaller cars, so check clearances carefully. Since it is a soft shell, you will need to load and unload gear frequently. Unlike hard roof boxes, this bag does not offer rigid security or easy internal access while driving. You should pack items tightly to prevent shifting during transit. The included straps and hooks handle most setups, but you might want extra bungee cords for additional stability on long highways. Regularly inspect the vinyl for abrasions, especially where hooks contact the paint. This option suits travelers who prioritize volume over security. It fills a specific niche for those without racks, differing from the hard-shell alternatives that require existing crossbars. Consider your need for frequent access versus maximum storage space when choosing between this soft bag and the other 1 options listed.

Check before you buy

• Measure your roof length to ensure the 85-inch bag fits without excessive overhang.
• Check your vehicle's roof weight limit to confirm it supports the 19-pound bag plus cargo.
• Verify that your door and trunk edges can accommodate the eight included hooks safely.
• Decide if you need rigid security, as this soft shell offers less protection than hard boxes.

The product at a glance

1

Mockins XXL 50 Cu Ft Roof Bag

Best for: large SUVs without roof racks

Capacity

50 cu ft

Shell Type

840D vinyl soft shell

Water Resistance

Waterproof

Security

Combo lock

Installation

Buckle and ratchet straps, hooks

Vehicle Compatibility

Without roof rack; SUVs and vans

View on Amazon: Mockins XXL 50 Cu Ft Roof Bag Affiliate link

This is a 50 cubic foot soft-shell rooftop cargo bag measuring 85 by 50 by 20 inches. It weighs 19 pounds and uses 840D vinyl with heat-welded seams. The design requires no roof rack, using straps and hooks instead. It suits large SUVs and vans needing extra space for tents or suitcases. You get a complete kit with locks and a storage bag for easy setup.

Pros

• 50 cubic feet of storage capacity
• 840D vinyl with heat-welded seams
• No roof rack required
• Includes combo lock and storage bag
• 10-year limited warranty

Cons

• Soft-shell design offers less aerodynamic efficiency
• 85-inch length may not fit smaller cars
• Manual strap tensioning instead of quick-release

Good fit if

• You need to transport bulky items like tents
• Your vehicle lacks a roof rack system
• You want a 10-year warranty for peace of mind

Skip if

• You drive a compact car with limited roof space
• You prefer a hard-shell for better aerodynamics
• You need a carrier that fits on narrow roof rails

Verdict: Mockins XXL 50 Cu Ft Soft Roof Bag provides massive 50 cubic feet of storage without a roof rack. It fits large SUVs and vans carrying bulky gear like tents or multiple suitcases.

Specifications side by side

Frequently asked questions

See also

• mockins xxl 50 cu ft alternatives
• mockins vs thule roof cargo box
• patiowell 50 cu ft outdoor storage review
• avanti 0 84 cu ft top review