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 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. Meets FDA Requirements. BPA Free. Hand Wash Recommended.