Funny Steampunk Clockwork Mechanical Brain Tshirt 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 Vintage Steampunk Head in a Jar with a clock work mechanical brain would suit steampunk fans, science geeks, engineers and more Great Gift For Geeks, Science Nerd, Steampunk Fan Lightweight, Classic fit, Double-needle sleeve and bottom hem