This 40-ounce tumbler packs heavy-duty temperature control into an ergonomic shape that fits most cupholders. Ice will stay frosty for 24 hours and you can sip on a steaming beverage up to six hours later. Whether you’re sipping coffee on the morning commute or pouring yourself a cold one, this insulated stainless-steel tumbler ensures that your drink will stay perfectly hot or chilled for the occasion.