This metal bottle from adidas is designed to keep beverages cold for up to 24 hours and warm for up to 12 hours. It's made of durable stainless steel. The easy-to-use straw top is BPA-free. Included: 1 Water Bottle(s) Features: Insulated, Double Wall Construction, Bpa Free Capacity: 20.2 oz. Base Material: 100% Stainless Steel Care: Hand Wash Material: Stainless Steel Country of Origin: Imported