Arctic Tumblers | 30 oz Storm Grey Insulated Tumbler with Straw & Cleaner

EXTREME TEMPERATURE RETENTION - The Arctic Tumblers double-wall vacuum technology maximizes temperature retention that traps the cold in your beverages for 16 hours and the heat for up to 8 hours! The thermal insulated design keeps the flavor and freshness of your drink while preventing any temperature transfer to the exterior. No matter what the contents - hot tea, coffee, or an ice-cold beverage, the feel on this stainless vacuum tumbler remains constant!