4.1 oz., 60% cotton, 40% polyester. Fine yarn count shirting. True Non-iron performance straight from the dryer. Stain release finish. Classic Fit for professional appearance. Pearlized buttons. Patented pucker-free taped seams. Specially fused collar, cuffs and placket. Split back seam with bias cut back yoke. Rolled button-down collar. Adjustable "Comfort Collar" for up to an inch of stretch at neck. Left-chest pocket.