7 oz., 100% soft combed ringspun heavyweight cotton. Features no-shrink, no-fade fabric, and a no-curl collar. Single-needle stitched shoulders, armholes and cuffs. Matched neck and side vent Twill tape. Set-in sleeves with rib finish. Contrast tipping at collar, cuffs and Placket. Pearl buttons on a self-fabric placket. Four buttons.