3.5 oz. (US), 5.8 oz/Lyd (CA), 53/43/4 cotton/polyester/lycra. Fine yarn count shirting. True Non-iron performance straight from the dryer. Stain release finish. Active Fit. Straight collar with built-in collar stays. Adjustable Comfort Collar for up to an inch of stretch at neck. Pearlized buttons. Fused collar, cuffs, and placket. Left-chest pocket. Split back seam with bias cut back yoke.