The classic flannel built for the guy who wants more out of their standard issue shirt. The Underwood is made with an anti-pill 100% polyester brushed flannel that dries faster and wicks moisture more efficiently than cotton. Finish it off with Polygiene permanent odor control that inhibits the growth of odor causing bacteria in the fabric, saving a trip to the laundry room when you're on the road. Features: Button front closure, dries faster and wicks moisture, chest pockets, side seam with self gusset and two year limited warranty. Material: Polyester.