Take the formula for Pi, the spelling of "pie," put them together and you've got a palindrome! Either way you read it, the slogan on this tee spells out the same thing. You have the equation for a golden-crusted fruit-filled dessert. Faced with a pie, you will measure its circumference and then dig in. This is a winning formula for Pi day, Pie Day and any day. You'll get puzzled looks, knowing grins and loud laughs from everyone who reads this tee. Wear it with a fork and a glass of milk.