5.3-ounce 100% cotton 99/1 cotton/polyester (Ash)90/10 cotton/polyester (Sport Grey) 50/50 cotton/polyester (Heather Navy Heather Red Heather Sapphire Safety Green Safety Orange Graphite Heather Safety Pink Dark Heather)Non-dyed fabric with visible specks of fibers and cotton seeds (Natural)Non-topstitched classic width rib collarTaped neck and shouldersRecycled high-performing black tear-away labelClassic fit seamless bodySafety Green is compliant with ANSI/ISEA 107 high-visibility standards for background color.