It's a mathematical notation that's funnier than 69

This Animal World design is printed on a high-quality 100% cotton

From Marvel Comics comes this standard cotton short sleeve t-shirt in black featuring a large gathering of Marvel characters

From The Grateful Dead comes this adorable juvy Halter Top in pink that features the famous Grateful Dead Lightning Bolt in purple on the front

Bacon Pig Silhouette Blue Adult T-Shirt Color:Blue It's a mathematical notation that'sThis original Old Glory design is printed using cutting edge direct to garment technology on a high quality blue 100% Cotton crew neck t shirt. Designed in house and printed to order, this is a one of a kind tee for people with style to match.