25 oz. (740 mL) sports bottle made of durable Tritan™ Plastic with duo function Polypropylene Plastic lid with Dacron strap. Duo function lid unscrews in 2 spots – lower seal provides wide opening to insert ice cubes or sliced fruit to add some flavor to your water, upper seal is designed for standard use on the go. Designed for use with cool beverages only. Hand-wash only. Do not microwave or place in freezer.