Details:br Totally perfect blend of cotton and poly. 4.3-ounce, 6040 combed ring spun cottonpoly, 34 singles 9010 combed ring spun cottonpoly (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 5050 cottonpoly blend to a 6040 cottonpoly blend. Your order may contain a combination of both contents.