If you're trying to fit bulky sleeping bags or insulated clothing into a smaller space and you're trying to make your equipment needs fit into your budget, Sea to Summit Compression Sacks are the answer. Made of rugged 210-denier polyurethane-coated nylon, these sacks have several features that make them easy to load and easy to use. The flip-top-lid design prevents strap tangling. Four straps for even compression eliminates bulging. Extra long straps, so it's easy to fill these to maximum capacity. Nylon webbing pull handle on bottom. Imported. Color: Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Stuff Sacks.