Folding Trunk Rack BagThis is a black folding trunk rack bag. It is made by Add On and is designed to mount on top of most brands of trunk racks. The bag is made of 400 Denier nylon and measures 13" X 8 1 2" X 21" when opened. Then, when it is not needed, it can be folded up and zipped together to form a much smaller 13" X 8 1 2" X 3 1 2". The folding rack bag is convenient for any type of traveling. It features Velcro straps to fit most trunk racks, zipper closures for