7.5 oz./yd², 100% USA cotton, 16 singles; Heather Grey is 90/10 USA cotton, polyester; Charcoal Grey is 50/50 USA cotton, polyester; 3.5% Lycra® neck rib; Shoulder-to-shoulder neck tape and double-needle stitched neck; 1" double-needle stitched sleeve and bottom hems; 1" stretch-proof neck collar with satin/woven label; Heavy-duty knitting; Forward-thrusted shoulder seam for comfortable neck fit; Oversized/Relaxed with slight drop shoulder streetwear fit; Quarter-turned to eliminate center crease;