60% Cotton/40% rayon. Fine gauge jersey jersey fin. The addition of rayon to the yarn gives an extra soft handfeel. Subtle pinstripe inside the neck rib. Fully fashioned construction around the armhole, neckline and shoulder. We’ve added a special elasticized yarn to the cuff and bottom ribs to avoid them from stretching out. Can be worn over a button front shirt to the office or more casually over a t shirt.