Pi*R^2 t-shirt is a must have for scientist and mathematicians and makes a great gift for any mathlete. Let that inner geek shine! You'll love the super soft feel of this premium ring-spun cotton fabric. Our funny t-shirts are sure to please. Most of our tees have a slightly tapered fit; size up for more room
Join the geek masses and pick up one of these geek shirts spelled with sigma's instead of e's. Who needs a frat to wear Greek letters? You'll love the super soft feel of this premium ring-spun cotton fabric. Our funny t-shirts are sure to please. Most of our tees have a slightly tapered fit; size up for more room.
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