Double wall vacuum insulated lowball tumbler keeps cocktails at the perfect temperature. 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 occasions. Passivated interior protects against corrosion. Product does not retain odors or flavors. Base includes nonslip grip for extra stability. Retail hangtag with product features included. Hand wash recommended (dishwasher safe, top rack). BPA free. Keeps cold for 12 hours. 10 oz. capacity