No matter what your day has in store, this 30 oz. Stainless Steel Tumbler is ready to tackle it. With double wall and vacuum insulation, an ergonomic tapered shape, a slider lid with straw space, and a silicone grip, it can keep your drinks cold for hours. Crafted from top-notch stainless steel, it won't affect the flavor of your beverage. Holds up to 30 oz. The ergonomic tapered shape makes it easy to hold. Its double-wall construction will maintain the temperature of your drink for hours. Hand washing is recommended.