Double wall vacuum insulated tumbler keeps your beverages colder or hotter longer. Made of high-grade 18/8 stainless steel with a sweatproof design. Lid is made from BPA-free Eastman Tritan™ copolyester. Perfect for outdoor activities and exploration. Single-serve friendly for the perfect cup of coffee every time. Passivated interior protects against corrosion. Product does not retain odors or flavors. Retail hangtag with product features included. Hand wash recommended.