Double Wall Sleek and Tall Acrylic Tumbler - Double Wall, 20oz. Capacity - Purple A Sleek Ergonomic Design Tumbler great for the daily use of all your Hot or Cold beverage needs. BPA Free Acrylic Construction of Cup Housing and Screw on Lid, with silicone gasket seal. Double wall insulation keeps your cold drink while minimizing condensation "sweat" on the outside of the cup. Reusable straw included, tumbler lid will accept standard 8mm. size straws. Hand wash. Not for microwave or freeezer use.