Durable, double-wall stainless steel vacuum construction with copper insulation, which allows your beverage to stay cold for up to 48 hours and hot for at least 12 hours. The construction also prevents condensation on the outside of the bottle. On-trend, durable powder coating. Stainless steel screw-on, spill-resistant lid with integrated straw and durable stainless steel hand loop. Wide opening for comfortable filling and pouring. Perfect for ice cubes. Fits most standard car cup holders. Note: Drinking hot beverages with the straw is not recommended. Remove the lid to allow the beverage to cool.