Cutie Pie Funny Pi Day 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 Funny Cute Pi Day Shirt features cutie and the symbol for pi Great to wear on that famous day named after pi Lightweight, Classic fit, Double-needle sleeve and bottom hem