The unique pop-up design of this bag makes it terrific for hands free gathering and loading. Comfortable padded handles are made of durable polyester. The bag is made of vinyl-coated polyester that is tear and mildew resistant. There is a handy dump handle on the bottom for easier maneuvering. The Kangaroo Bag collapses into compact round disk for storage. Superior stitching and construction. Kangaroo Bags come in 10 gallon and 30 gallon sizes and can also be used with standard trash-can liners. The 30 gallon Kangaroo Bag is also available with a hard-shell bottom.