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 up to 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 durable stainless steel hand loop. Wide opening for comfortable filling and pouring. Perfect for ice cubes. Fits most standard car cup holders.