With the Rambler 20 oz. Tumbler, your beverages will stay ice cold or piping hot longer. We over-engineered these double-wall insulated tumblers with an 18/8 stainless steel body, which means your drink still keeps its temperature no matter how much of a beating this cup takes. Our Ramblers are BPA-free (obviously), have a No Sweat™ Design to make sure your hands stay dry, and are dishwasher-safe. All to say, these Ramblers Tumblers are the colored YETI cups that will keep your drink cold (or hot) until the very last sip. The stainless steel on-the-go cup solution. Dishwasher-safe. No Sweat™ Design makes for a secure grip with no condensation. Lid is dishwasher-safe and shatter-resistant.