🚚 Free shipping within mainland USA.


84" x 39" x 6" Expandable Rooftop Cargo Carrier with 35 Cu.Ft. Waterproof Cargo Bag

With the capacity to hold up to 250 lbs., the Mockins Roof Rack Rooftop Cargo Carrier allows you to easily load up and go in no time. Its smart design extends to 3 different sizes (40", 63", 84") enabling you to adjust the length to perfectly fit your needs.

  • Heavy-duty steel with an anti-rust coating ensures long-term durability.
  • Secured with a strong zipper and protective flap.
  • Designed with carry handles and zipper pulls for convenience.
  • Includes a safety lock and storage bag for protection and easy storage.
  • Easy to assemble and install on crossbars and side rails.
  • 6-inch metal side rails keep belongings secure.


10-Year Limited Warranty Included!
Cargo Basket Size

    Regular 40"L x 39"W x 6"H

    Medium Extended 63"L x 39"W x 6"H

    Max Extended 84"L x 39"W x 6"H

Cargo Basket Capacity 250 lbs
Cargo Bag Size 80"L x 40"W x 19"H
Cargo Bag Capacity 35 Cu.ft. (262 Gallons)
Material Steel frame with rust-proof coating
Stability Features 4.5" metal side rails

    3 Ratchet Straps

    Buckle Straps (1.5")

    Extendable Bungee Net

    Combination Lock

Optimize Storage & Passenger Comfort!

With a capacity of up to 250 lbs, this car roof carrier allows you to quickly load up and hit the road!. Its smart design features an adjustable size, extending from 43 in. to 64 in. to accommodate your needs. Included in the set are a waterproof cargo bag, a bungee cargo net, and 2 sets of water-resistant ratchet straps, providing your belongings safe and secure transportation. Get ready to travel with ease and confidence with the Mockins Roof Rack Rooftop Cargo Carrier.


The team at Mockins constantly works to bring you excellent quality auto accessories at great prices. We design, manufacture, and test each product to ensure that you always get the best value. Our customer support staff are always available to help  Monday - Friday (9:00AM - 5:00PM EST) with useful information or assist with any potential order related issues.


Mockins provides free standard shipping and free returns for orders shipped within the mainland United States besides for Hawaii and Alaska. All orders will be processed and shipped within 1 business day from when the order is placed.

Mockins has a 30 day return policy from when the item is received. Please reach out to Mockins Customer Support to initiate the return, support@mockins.com. To complete a return we require proof of purchase and reason for return. Our customer service team will get back to you within 2 business days. For free returns, a prepaid label will be issued and sent via email to the customer. The prepaid label must be used for the free return. Once the item is received back in unused condition, a refund will be processed to your original form of payment.


Do NOT load items on the product in front of your vehicle’s tailpipe, due to possible damage or health hazards. Do NOT exceed your vehicle hitch’s maximum tongue weight. It is your responsibility to consult your vehicle’s owner’s manual to ensure safe product use based on your specific vehicle.


Our universal roof rack basket is designed to effortlessly attach to any vehicle with crossbars providing a secure rooftop cargo solution for all types of adventures. However, always check the vehicle's roof weight capacity in your manufacturer’s manual.

The sturdy steel frame of our roof rack supports a hefty 250 lbs, ensuring stability and safety for your cargo during transit.

Our heavy-duty cargo carrier provides ample rooftop storage with dimensions measuring 84"x39"x6". It can extend to 3 different lengths: 40", 63", and 84", accommodating a variety of payload sizes while maximizing interior space and passenger comfort.

Yes, constructed with 100% waterproof abrasion-resistant vinyl, our cargo bag keeps your gear dry in all weather conditions.

Our roof cargo carrier features 4.5" metal side rails to keep your essentials contained. It also comes with durable accessories including 3 ratchet straps, 3 buckle straps, an extendable bungee net and a combination lock to ensure a safe, stable and secure journey for you and your belongings!