Pi has never looked so delicious! Boasting a large Pi symbol on a pizza, this is just the shirt to flaunt your love for the endless mathematic constant! This original Old Glory design is printed using cutting-edge direct-to-garment technology on a high-quality grey, cotton/polyester crew sweatshirt. Designed in-house and printed to order, this is a one-of-a-kind sweatshirt for people with style to match.