Show your love and support for the brave men and women of the Thin Red Line with this one-of-a-kind 20 oz. tumbler mug. It features the Thin Red Line U.S. flag printed on either side in the shape of a heart, and its slight taper design lets it fit comfortably into most vehicle cup holders. Where the mug really stands out is in its double-wall construction. This stainless steel design lets the tumbler keep your beverage at its original temperature and prevent any “sweating” on the outer edge, which causes a mess and causes cold drinks to warm up. The plastic slider top is great for preventing spills due to its rubber ring on the inner lip that gives it a vacuum-like seal. Shop today for this mug as a gift for a proud firefighter spouse, or show your love and support with a mug for yourself.