30oz. RTIC Tumblers are stainless steel, double wall vacuum insulated. Keeps your drinks ice cold longer - works great for hot beverages. The crystal clear lid lets you know exactly how much drink you have. Easy to clean. Tricked out with a stylish Fishing Frenzy Tackle logo, you'll want to keep an eye on this one. All of your fishing buddies are going to want to get there hands on this one!