Vacuum-insulation maintains optimal drinking temperatures and provides 6X heat retention. Features attachments: clear screw-on, sip-through lid and a black can/bottle ring. Twist top Rubberized ring to hold a standard 12 oz. can or bottle. Transitions between poured drink insulated tumbler, 12 oz can cooler, and 12 oz beer bottle cooler. Lead-free in all accessible components. 18-8 Stainless Steel dual-walled construction. Laser-engraved logo.