Totally perfect blend of cotton and poly. 4.3-ounce 60/40 combed ring spun cotton/poly 34 singles 90/10 combed ring spun cotton/poly (Light Heather Grey) 1x1 rib knit neck Shoulder to shoulder taping Tear-away label All heather colors (except for Light Heather Grey) in this product are transitioning from a 50/50 cotton/poly blend to a 60/40 cotton/poly blend. Your order may contain a combination of both contents.