6 oz./yd²/210 gsm (US), 10 oz./L yd (CA), 100% polyester pique; ChromaSoft™ technology combines the colorfastness of cationic dyes with soft cotton-feel performance; Moisture-wicking; Anti-microbial performance; Side vents; Three-button placket with self-fabric collar and integrated collar stays; Dyed-to-match buttons; Tear away label;