20 oz. Double-Wall Insulated Travel / Coffee Cup with Clear Slid Lid. Double-wall insulation maintains a 40 degree difference between the contents and the outside, so it can be used safely without a protective sleeve. Molded from reusable and recyclable Polypropylene. BPA-free. Ships assembled. Fits most auto cup holders, is top rack dishwasher safe and is not recommended for use in a microwave oven.