With the rambler 20 oz. Tumbler your beverages will stay ice cold or piping hot longer. We overengineered these doublewall insulated Tumblers with an 188 stainless steel body which means your drink still keeps its temperature no matter how much of a beating this cup takes. Theyre bpafree obviously have a no sweat design to make sure your hands stay dry and are dishwashersafe. Plus its crystalclear lid lets you check your drink Status in a flash. Refill anyone.