Toxic Rusted Warning Sign with Skull Warning Sign T-shirt. Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat 5 colors to choose from. Old Vintage Rustic Rusted Signs in a unique t-shirt Lightweight, Classic fit, Double-needle sleeve and bottom hem