Utopia Home Tumbler - Stainless Steel Double Wall Insulated Large Coffee Mug/Travel Mug for Hot and Cold Drinks - No Sweat Exterior (30 Oz, Stainless Steel) Capacity to hold 30 ounces of liquid Stainless steel grade of 18/8 prevents rust and enhances product life Double wall vacuum insulated storage keeps the drink hot/cold for hours Dishwasher safe For an enhanced experience, rinse the product thoroughly before first use, and avoid using abrasive cleansers or bleach