Freezer Gel - Cold Drink Sport Water Bottle - Double Wall, 20oz. Capacity BPA Free Durable Copolyester Tritan Construction of Bottle Housing made in USA. Double Wall filled with Safe, Non Toxic Freezer Gel Crystals Sport Style Flip Top Silicone Drink Spout with attached straw. Simply place the empty bottle in the freezer 4 hours before use. Cold liquid use only. Hand Wash Only. Not for microwave or freezing.