5.3-ounce, 100% US cotton,99/1 cotton/polyester (Ash),90/10 cotton/polyester (Sport Grey, Antique Cherry Red, Antique Irish Green, Antique Jade Dome, Antique Orange, Antique Sapphire),50/50 cotton/polyester (Blackberry, Dark Heather, Heather Military Green, Heather Navy, Heather Radiant Orchid, Heather Red, Heather Sapphire, Lilac, Midnight, Neon Blue, Neon Green, Russet, Sunset, Tweed, Safety Green, Safety Orange, Safety Pink, Graphite Heather),Non-dyed fabric with visible specks of fibers and cotton seeds (Natural),Non-topstitched, classic width, rib collar,Taped neck and shoulders,Recycled, high-performing black tear-away label,Classic fit, seamless body,Safety Green is compliant with ANSI/ISEA 107 high-visibility standards for background color