3.4 oz., 55% cotton, 45% polyester. True Non-iron performance straight from the dryer. Stain release finish. Classic Fit for professional appearance. Patented pucker-free taped seams. 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. Pearlized buttons.