30 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 tumbler. Polar Camel High Endurance Drinkware is engineered with double-wall, vacuum-insulated construction to provide superior heat and cold retention. The powder-coated finishes deliver rugged durability in a wide selection of colours and are also available in white or stainless steel for full-colour personalization. Your personalized Polar Camel will become your favourite drinkware and will last for years to come. Colour: Grey