This 16 oz. stainless steel water bottle is double walled, vacuum insulated and BPA free. It will keep your cold drinks chilled for twelve hours and your hot drinks warm for six hours. Laser engraved with our signature lotus, this 100% recyclable water bottle is designed to last over twelve years. Stainless steel water bottles don't leach chemicals into your water like plastic bottles do, plus, they are safer for the environment.