USB I Am Your Father! Funny Geek Computer 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 USB I Am Your Father! Funny Geek Computer T-Shirt. Remember when all you had was 1.44mb of space? Get this funny geeky shirt! Makes a great gift! Lightweight, Classic fit, Double-needle sleeve and bottom hem