S'well tumblers feature Therma-S'well® technology with triple-layered, vacuum-insulated construction, designed to keep beverages colder or hotter, longer than all the rest. It offers a condensation-free exterior that won't sweat in your hands or bag. Made from 18/8, food-grade stainless steel with superior construction to reduce the need for single-use cups. Features: Vacuum-insulated 18/8 stainless steel BPA/BPS-free Condensation-free exterior Capacity of 470mL (16 oz.) Includes: 4 x Tumblers Retail Price: $49.99