Everyone likes pirates but if you're a mathematician you have to balance that with your love of pi. This is the tee to wear if you want to stun them all on "Talk Like a Pirate Day." And guess what? You can double up and wear it on Pi Day too! In one fell swoop you'll have a reference to pi, one to pirates and one to clever wordplay all in one do-it-all garment. It comes in black or charcoal which are the only colors you can reasonably fly your pirate flag in. This tee is so perfectly witty and so perfectly comfortable that it would be irrational not to buy it.