5.3 oz./yd (US) 8.8 oz./L yd (CA), 100% cotton, 20 singles. Heather colors, Graphite Heather, Safety colors,Tweed, Blackberry, Lilac, Midnight, Neon colors & Sunset - 50/50 cotton/polyester. Antique colors & Sport Grey - 90/10 cotton/polyester. Ash Grey - 99/1 cotton/polyester. Safety Green - Compliant with ANSI / ISEA 107. Midweight fabric. Classic fit. Non-stitched, classic width, rib collar. Taped neck and shoulders. Double-needle sleeve and bottom hems. Tear away label.