I See You Have Graph Paper Math Pun 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 I see you have graph paper. You must be plotting something. This math teacher joke pun t-shirt is perfect for any math nerd! Lightweight, Classic fit, Double-needle sleeve and bottom hem