Botel Classic Environmental Borosilicate Glass Water Bottle with Nylon Sleeve, Black, 17-Ounce Package Contents: One Botel Glass Bottle and One Nylon Carrying Sleeve Completely dishwasher and freezer safe. Durable, heavy-duty design is built to last Clean tasting glass is the perfect vessel for water; BPA, phthalates, PVC, lead and cadmium free The bottle is made of ultra clear borosilicate glass, which is known as a kind of special environmental and healthy glass material. It is a kind of low expansion rate, high temperature resistance, high strength, high hardness, high transmittance and high chemical stability. This bottle was designed on both esthetics and comfort. There is a loop on the sleeve, which makes the bottle convenient to carry, perfect for travel and sports.