Koverz Neoprene 24-30 oz Water Bottle Insulator Cooler Coolie - Choose Your Style! Stretches to fit most 24-30 oz. bottles Keeps warm drinks warm and cold drinks cold Absorbs messy condensation, Protects Bottles! Works great with 27oz Kleen Kanteen, BLENDER BOTTLES, YETI, Camelbak Eddy, Sigg bottles and other stainless steel and polycarbonate bottles Machine Washable