This 17oz bottle is perfectly sized to keep you hydrated all day long from your morning commute, to meetings, to yoga class, to the tennis court, to work. You name it, take this bottle with you! Designed to keep beverages cold for 24 hours and hot for 12, our water bottles feature double wall construction with an extra interior copper layer for superior performance. Our bottles are made from premium grade, 18/8 stainless steel that's non-toxic, non-leaching and BPA free. Vacuum insulated to keep liquids and carbonated beverages fresh. The exterior will never sweat. Don't worry about getting water on your desk, rings on your table, or a mess in your bag! The bottle won't even be hot or cold to the touch no matter the temperature of the liquid. Fits Most Cup Holders - The shape of this 17oz bottle will fit normal sized cup holders and the narrow mouth makes it easy to drink from on the go.