Microfiber Windshirt Polyester is designed for reliable performance in team, training, and everyday use. 100% Sanded Microfiber Polyester. Key features include Spandex reinforced rib knit V-neck collar and waistband; Side entry pockets; Locker loop; Wind and water resistant; Fully lined with 100% Polyester taffeta; Embroidered Badger logo on left sleeve.