Copper lined, vacuum-insulated deep draw liner maintains optimal drinking temperatures and provides 8X heat retention Stainless Steel dual-walled construction Lead-free vacuum seal Includes 2 attachments: Black can/bottle ring, and spill-proof flip-top AS plastic lid featuring unique Tritan snap-locking closure 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 Sweat-free design Durable powder-coated finish Fits in most corporate and personal coffee machines 1-year limited warranty Patented