This is Probably Alcohol - can be customized with "Beer", "Vodka", "Rum", "The Tears Of My Enemies" etc etc.
20 oz. Stainless Steel Polar Camel Tumblers features double-wall vacuum insulation with a clear lid. The mug has a narrower bottom to fit most standard cup holders. It is 2X heat & cold resistant compared to a normal tumblers. Polar Camels are made from 18/8 gauge stainless steel