Your customers will sip happy from their 20 oz. everest stainless steel insulated tumbler! This travel tumbler is vacuum-insulated with stainless steel double walls that keep drinks hot for 8 hours and cold for up to 18 hours. The lid will keep your drink in with its spill-resistant, slide lid with rubber gasket and BPA free. Great as promotional product for gyms, but also could be branded for you school, picnic, or company travel. Holding 20 ounces this tumbler is available in an assortment of colors and has many imprint methods. Drink in style with this tumbler!