ComputerGear Pi Day Shirt T shirt Math Geek Nerd Graphic Cotton Men Women Adult Spiral Tee Geeky math teacher shirts for men women Pi Day T-shirts shows the first 397 characters of pi; Small fits chest/bust 34-36 in. chest, Medium fits 38-40, Large fits 42-44, X-Large fits 46-48, plus size 2XL fits 50-52, 3XL fits 54-56, 4XL fits 58-60 PRINTED ON BOTH SIDES this novelty adult printed spiral Pi shirt T shirt is a must have math mathematician; Ultimate Pi Day t shirt makes a perfect STEM gift for mathematically inclined math teacher gift; soft 100% preshrunk cotton machine wash/drygift The math lover in your life will appreciate this graphic expression of the number pi as the number 3.14159..on high quality Pi Day tshirt Printing process creates slight variations in each shirt; Great for National Pi day 3.14 This Pi Tshirt is a ComputerGear&reg copyrighted/trademarked design and a ComputerGear exclusive.