Expertly designed to keep your drinks hot for up to 6 hours and refreshingly cold for up to 24 hours thanks to its innovative dual-wall vacuum structure crafted from premium 18/8 stainless steel. The spill-proof BPA-free lid and optional comfort handle enhances its functionality, making it the ideal companion for your active lifestyle. Bonus- our 20 oz. tumbler includes 2 stainless steel straws!