Shop this Arctic Zone® Titan Thermal HP® Copper Tumbler 20oz as a company gift for your clients and employeesCustomize this double-wall 18/8 grade stainless steel vacuum construction with copper insulation. It allows your beverage to stay cold for 24 hours and at least 8 hours for hot beverages. The construction also prevents condensation on the outside of the tumbler. Easy sipping, push-on lid with slide closure. Wide opening for comfortable filling and pouring.