NEW for Q2 Copper lined, vacuum-insulated deep draw liner maintains optimal 7X drinking temperatures Dual walled Stainless Steel construction Lead-free vacuum seal Includes 2 lids (clear thumb-slide, push-on lid and a black push-on can/bottle ring) designed to attach to the mug at the same time to prevent loss and provide a seamless on-the-spot transition Push-on rubberized ring holds a standard 12 oz. can or bottle Single self-contained unit transitions between poured drink insulated mug, 12 oz can cooler mug, and 12 oz beer bottle cooler mug Durable powder-coated finish Sweat-free design 1-year limited warranty Patent pending