-8.8 oz./lin.yd., 100% preshrunk USA cotton -Ash Grey is 99/1; Sport Grey is 90/1 -Dark Heather, Safety Green, Safety Orange & Safety Pink are 50% cotton. 50% poly -Made with sustainably and fairly grown USA cotton -Seamless rib at neck -Taped shoulder-to-shoulder -Double-needle stitching throughout -Tear away label