BUILT Neoprene Bottle Slinger, Small, Scuba Blue Insulates one 20 ounces (500 ml) bottle up to four hours (time varies depending on external temperatures) Made from neoprene, the wetsuit material Comfortable handle for attaching to wrist or bag for transport Stretches to fit Klean Kanteen, Camelbak, Nalgene, and Sigg bottles as well as sports drinks; stores flat Stain resistant; machine wash cold, drip dry