Pi Day Tee | Long Sleeve

Celebrate the most irrational number in the most rational way!

The Pi Day, Long Sleeve T-Shirt features the traditional Pi Day insignia in a clean, classic layout—designed for engineers, students, and anyone who appreciates elegance backed by equations. Perfect for March 14th celebrations, campus wear, or quietly signaling to the world that you respect both rigor and good design.

This long sleeve tee offers a comfortable, everyday fit with durable construction that holds up through problem sets, late nights, and repeat washes. Finished with a subtle Tau Beta Pi emblem on the front and the iconic Pi Day design on the back, it’s understated, timeless, and unmistakably technical.

Fit & Sizing Notes (because fit matters):
5’3” 115lbs =
Small fits well and streamlined
Medium gives a slightly oversized, casual look
Large is ideal for lounging or layering

Details:
Black long sleeve tee
Front: Tau Beta Pi Bent + name
Back: Pi Day circular design with Pi digits
Unisex fit
Soft, durable fabric for everyday wear

Wear it on Pi Day. Wear it all year. Numbers don’t go out of style.