6 oz./yd, 100% USA cotton, 18 singles. Charcoal Grey is 50/50 USA cotton/polyester. Safety Green and Lime are 50/50 USA cotton/polyester. Classic fit. Forward-thrusted shoulder seam for comfortable neck fit. 7/8" seamless non-topstitched collar. Shoulder-to-shoulder neck tape. 1" double-needle stitched sleeve and bottom hems. Quarter-turned to eliminate center crease. Tear away label.