This 15oz version of the classic coffee cup might just make those early mornings and late nights of life a little easier.  The double wall stainless steel construction is going to keep that precious liquid hot and fresh and with free engraving it's just too good to pass up.  15 oz. Stainless Steel Polar Camel Mugs feature doubl-wall, vacuum insulation with a clear, slider lid. They are 2X heat and cold resistant compared to other tumblers. Polar Camels are made from 18/8 gauge stainless steel (18% chromium/8% nickel) - also known as Type 304 Food Grade.