With the psychedelic and iridescent finish, your next promotion will be sure to stand out. Durable, double-wall 18/18 stainless steel vacuum construction with copper insulation, which allows your beverage to stay cold for 24 hours and hot for at least 6 hours. The construction also prevents condensation on the outside of the tumbler. Perfect accessory for wine. Easy sipping, push-on lid. Wide opening for comfortable filling and pouring. 12oz.