70% Stainless Steel, 25% Polypropylene, 5% Silicone. Durable. Double-Walled, Insulated, Keeps Drinks Cold For 12 Hours, Keeps Drinks Warm For Up To 6 Hours, Non-Slip Base, Rubber Base, Spill-Proof Lid, Straw, Twist Lid. Design: Floral, Logo. Capacity: 1.2L. Ref: UTRG12568