This 30oz. RTIC iGnite tumbeler is stainless steel, double wall vacuum insulated and perfect for outdoor workouts! Keeps your drinks ice cold longer (and even works great for hot tea, coffee,etc. They included an all-new shaded Splash Proof lid that lets you know exactly how much drink you have. The flip-top closure resists spills and is straw friendly. And, it's super easy to clean!