KLOUD City&reg; High-quality Environmental Borosilicate Glass Water Bottle with Neoprene Sleeve Package included 1 pcs glass water bottle and 1 pcs neoprene sleeve Neoprene Sleeve provides a comfortable feeling and heat insulation BOROSILICATE GLASS,low thermal expansion,high transmittance,high chemical stability,high temperature resistance, high hardness Convenient to carry, perfect for travel and sports Capacity:12Oz(360ml), heat-resistance temperature:-22F~302F