With the Rambler 20 oz. Tumbler, your beverages will stay ice cold or piping hot longer. YETI 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. The Ramblers are BPA-free, have a No Sweat Design to make sure your hands stay dry and are dishwasher-safe. The MagSlider Lid harnesses the power of magnets for smooth opening and closing so you can enjoy your drinks without worrying about splashes on the go. All to say, the YETI Rambler 20 oz. Tumbler with MagSlider Lid is the colored cup that will keep your drink cold (or hot) until the very last sip.