Features 4.5 oz., 100% preshrunk ring spun cotton Antique colors & Sport Grey: 90% ring spun cotton, 10% polyester Graphite Heather is 50% ring spun cotton, 50% polyester Heather colors & Blackberry: 65% polyester, 35% ring spun cotton The color "Natural" is made with unprocessed, unbleached cotton, which results in small black flecks and plant fibers throughout the fabric. Double-needle stitched sleeves and bottom hem High stitch density for smoother printing surface Taped neck and shoulders Modern Classic Fit