3.4 oz. (US), 5.7 oz/Lyd (CA), 55/45 cotton/polyester. Fine yarn count shirting. True Non-iron performance straight from the dryer. Stain release finish. Active Fit. Front and back princess seams with bust darts for a flattering feminine fit. Straight collar. Patented pucker-free taped seams. Fused collar, cuffs, and placket. Pearlized buttons. Split back seam with bias cut back yoke.