5.5 oz./yd² (US) 9.2 oz./L yd (CA), 100% ring-spun cotton, 30 singles; Sport Grey is 90/10 cotton/polyester; Polyester thread used for colors, White is 100% cotton thread; High stitch density for smoother printing surface; Lap shoulder construction; Rib binding with double needle stitching on neck, sleeves and leg openings; Three-snap bottom closure; CPSIA Tracking Label Compliant; Tear away label;