4.5 oz./yd² (US) 7.2 oz./L yd (CA), 100% preshrunk combed ringspun cotton, 30 singlesHeather Grey is 90/10 cotton/polyesterAlternate Heather colors are 65/35 polyester/cottonGraphite Heather is 50/50 cotton/polyesterSoft combed ringspun fabricSemi-fitted tubular bodyHigh stitch density for smoother printing surface5/8" rib collarTaped neck and shouldersDouble-needle sleeve and bottom hemsBlack tear away labelOeko-Tex® Standard 100 Certified