TRIPLE-LAYERED INSULATION: S’well Neptune 25oz stainless steel water bottles feature triple-layered, vacuum-insulated construction, designed to keep beverages cold for up to 48 hours or hot for up to 24 with our exclusive Therma-S’well Technology. Each water bottle features unique colors, prints, patterns and textures, all while delivering superior functionality. Hand-wash only. | THE PERFECT FIT: Our metal water bottles and beverage containers are designed with an opening wide enough for most ice cubes so you can easily refill and reuse it over and over Whether you're hitting the road, bike trails, or the gym, you’ll find S’well fits just right in most standard-size cup holders | DON’T SWEAT IT: S'well beverage containers are insulated with a copper wall layer to eliminate condensation by providing an exterior that won't sweat on your hands or in your bag | WORRY-FREE HYDRATION: Your search for safety is over All S’well containers are BPA-free and composed of 18/8 premium food-grade stainless steel We are compliant with California Prop 65 regulations and our products are certified to meet all regulatory requirements by an independent and accredited testing facility | SUSTAINABILITY WITHOUT COMPROMISE: You won’t have to compromise fashion and functionality to live more sustainably with our sleek, beautifully crafted, built to last bottles Every S’well purchased counts towards displacing millions of single-use plastic bottles