Stainless steel outer and inner. Powder coated finish. Functions as a tumbler, standard can cooler, slim can cooler or bottle cooler. Vacuum insulated sweat-proof design. Double wall construction for insulation of hot or cold beverages. Includes screw on, spill-resistant flip-top lid with easy carry handle and interchangeable cooler rim. Fits most 12 oz. cans, standard bottles and automotive drink holders. Replace the cooler rim with the flip-top lid to use as a 12-oz. tumbler. BPA free. Hand wash recommended.