Look at these handy 15 oz. stainless steel Polar Camel mugs that 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).

15 oz. Polar Camel Coffee Mug with Slider Lid