Outdoor Research Ultralight Compression Sack 12L 40D ripstop siliconized nylon Drawcord and Hypalon cordlock keeper closure, ripstop nylon compression rings, four compression straps Bound seams on end caps for durability Lid has built-in stuff sack for self storage Dimensions: 19 1/4" x 7"/49cm x 18cm, Volume: 732 cu in