S'well Men's Onyx Large Stainless Steel Bottle Imported Designed to keep beverages cold for 24 hours and hot for 12, our water bottles feature triple wall construction with an extra interior copper layer for superior performance. Our bottles are made from premium grade, 18/8 stainless steel thats non-toxic, non-leaching and BPA free 25oz bottle is perfectly sized to hold an entire bottle of wine The Shimmer Collection features a glossy lacquered finish and clean, classic colors that catch the eye