And Then Satan Said "Put The Alphabet In Math" Tshirt Math 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 Funny Math Tshirt Funny Tshirt Funny Sayings Tshirt Math Shirt Funny Math Shirt. makes a great gift for the math teacher! Lightweight, Classic fit, Double-needle sleeve and bottom hem