Valhalla Copper Vacuum Insulated Bottle 20oz features a skid-proof cork look bottom and handling loop design, your next promotion will be sure to stand out. Durable, double-wall stainless steel vacuum construction with copper insulation, which allows your cold beverage to stay cold for 48 hours and hot for at least 12 hours. The construction also prevents condensation on the outside of the piece. Fits most standard car cup holders. This product is an exclusive design.