Evil Cotton Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 58% Cotton, 42% Polyester Imported Machine wash cold with like colors, dry low heat Never been worn by a hobo! Does NOT repel zombies. We never claimed that it does so stop complaining that our shirt failed to prevent your conversion to the land of the undead. Ahlskdksj there's one right behind me!1 My leg!!!!! hooowwwwooooooooO!!!!!!! This premium t-shirt is made of lightweight fine jersey fabric Fit: Slim (consider ordering a larger size for a looser fit)