Apple Pi Pun T-Shirt for Math Students Children Professors 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 Apple Pi Pie Funny Pun Tshirt for teachers, boys, girls, men and women. Lightweight, Classic fit, TearAway label, Double-needle sleeve and bottom hem This tee shirt makes a great gift for the people in your life who enjoy math, calculus and apple pie! 4.5 oz 100% Combed Ringspun Cotton, machine wash cold with like colors, dry low heat