5.4 oz./yd², 50/50 cotton/polyester; Oxford is 47/53 cotton/polyester; SpotShield fabric repels water and most oil-based spills; Side-seamed and slightly contoured for a flattering fit; Welt collar resists curling; 1x1 ribbed cuffs; Four pearlized buttons on a clean finished placket; Clean finished side vents; Tagless label