Material: 4.5 oz., preshrunk 100% combed ringspun cotton; 30 singles Heather Grey: 90% cotton, 10% polyester Heather colors and Neon colors: 65% polyester, 35% cotton Graphite Heather: 50% cotton, 50% polyester Feature: Seamed collar Shoulder-to shoulder tape Tubular construction transitioning to Side Seamed- mixed inventory may occur Double-needle sleeve and bottom hem; Oeko-Tex® Standard 100 Certified Tear away label