3.4 oz., 55% cotton, 45% polyester broadcloth, true non-iron performance straight from the dryer, fine yarn count shirting with pearlized buttons, patented pucker-free taped seams, specially fused collar, cuffs and placket, split back seam with bias cut back yoke, classic fit for professional appearance, rolled button-down collar, adjustable "Comfort Collar" gives up to an inch stretch at neck, left-chest pocket.