20 oz. Stainless Steel Polar Camel 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 tumbler. Polar Camels are made from 18/8 gauge stainless steel l (18% chromium/8% nickel) - also known as Type 304 Food Grade. 3 3/8" x 6" and 1/8" thick, Base 2 5/8" diameter. Fathers Day!