Extracting from Earth’s natural beauty, the Elements Collection, featured in a shiny, high-gloss finish, mimics the appearance of essential materials from ancient quarries and freshwater pearls. S'well bottles feature Therma-S’well(R) Technology with triple-layered, vacuum-insulated construction designed to keep beverages colder or hotter, longer than all the rest. BPA Free and reusable. Stainless steel. 17 oz. Hand-wash only.