It’s All Fun and Games Until Someone Divides it by pi-Art

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, Great T-shirt for the Mathematicians in your life. Science Geek T-shirts, calling all geeks, Math and Science, Nerds, Lightweight, Classic fit, Double-needle sleeve and bottom hem