Established in 2010, S'well is the only reusable bottle that looks great and does good. S'well keeps your drinks cold for 24 hours or hot for 12, while giving back to those in need. S'well bottles are beautifully crafted and designed to last. Composed of 18/8 premium grade stainless steel, S'well bottles are insulated to eliminate condensation so they never sweat on your hands or in your bag. Designed to suit all of your hydration needs, S'well bottles come in three sizes: 9oz, 17oz, and 25oz. Whether you're on the road or in the office, there's a S'well bottle just for you. Construction: 18/8 double-walled stainless steel, non-toxic, non-leaching and BPA free.