Whether you like it Hot Hot Hot, or Cold Cold Cold; this is the Tumbler for you! 20 oz. size RTIC Tumblers are stainless steel, double wall vacuum insulated. Keeps your drinks ice cold longer - works great for hot beverages as well. The all-new shaded Splash Proof lid lets you know exactly how much drink you have. The flip-top closure resists spills and is straw friendly. Easy to Clean. Color: Stainless Steel Silver. RTIC20TUMBLER-SS. Air Tight Seal Heavy duty lid seal locks in the cold.