S'well Tumblers feature a Slide-Open Lid and Therma-S'well® Technology with triple-layered, vacuum-insulated construction, designed to keep beverages colder or hotter, longer than all the rest. The pop-on, Slide-Open Lid creates a splash-proof experience. The Tumbler with Slide-Open Lid features a wide mouth and thin rim for easy drinking. Ice cubes fit effortlessly inside. The lid makes it ideal for use at home or on the go. Made from 18/8, food-grade stainless steel. Offers a condensation-free exterior that won’t sweat in your hands or on the table. The 10oz Tumbler holds juice, wine, cocktails and more. The 18oz Tumbler holds your favorite beer or glass of iced tea. Keeps beverages cold for 12 hours and hot for 4. Customize your own essential set by pairing Tumblers with a 25oz S'well Bottle or a 40oz Roamer; mix and match your favorite styles to create a unique set. BPA/BPS-free and reusable. Top-rack, dishwasher safe.