Made from premium stainless steel, with copper coating vacuum sealed the insulated, this 20 oz tumbler is durable and rust-resistant. Designed with a sealing cover and handle for easy portability. Great for everyday use at home, in the office, outdoor parties and events, such as sports, traveling, camping and driving. The blank area can be customized with your logo to make it a perfect marketing item. Imprint drinkware only can be handwash. BPA FREE, FDA certified, CA Prop 65 list.