Features:

• Premium quality rainproof construction provides protection
• 2 interior pockets hold small items and help organization
• 6 straps provide secure attachment
• Dimensions measure 48" x 19" x 18/22"
• Fits hitch mounted cargo trays

Editor Reviews:

Product Description:
The ROLA Expandable Cargo Bag offers a safe secure way to carry extra cargo via a receiver hitch cargo carrier. The ROLA Expandable Cargo Bag works with most receiver hitch cargo carriers (up to 24"x60") and is easy to secure with the six included attachment straps. Quickly expands for extra cargo storage, and comes with two interior pockets for organizing smaller cargo. The ROLA Expandable Cargo Bag is constructed from premium quality rainproof material with sonically sealed seams ensuring your cargo stays dry no matter the climate.

Rating : - Well built and BIG bag
This bag is very large; which is what I wanted. The only drawback is that it does not have any type of frame to keep its shape. I guess you could build a frame out of small diameter PVC pipe but probably not worth it. Overall it seems to be well built.