20 oz. Stainless Steel Polar Camel Travel Mugs feature double-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
Polar Camel products are not covered under any type of warranty at this time.