5.9 oz. 58 cotton/37% polyester/5% spandex, no curl collar, reactive dye, fade resistant fabric, 4 button narrow, reversed placket with dyed to match buttons, welt collar and hem cuffs, 1/2 moon yoke, twill taping in neck, shoulders and side seams, side vents, 50 wash standard. Treated with DuPont Teflon Fabric Protector.