The 17oz emulates a standard size water bottle, and is perfect for staying hydrated at the gym or on-the-go. Keeps beverages cold for 41 and hot for 18. Bottle mouths fit most ice cubes, while the body fits most cup holders. 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. Made from 18/8, food-grade stainless steel and includes a copper wall layer that creates a condensation-free exterior that won't sweat on your hands or in your bag. BPA/BPS-Free and reusable. Hand-wash only.