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;