Show off your mathematical pride with this unique "Born on Pi Day" t-shirt. The black tee features a bold, retro-style triangular design with gradient stripes of orange, yellow and brown tones, centered with the mathematical constant π. The distressed print gives it a vintage feel. Made from a soft, breathable fabric, this short-sleeved shirt offers comfort and style. Perfect for mathematicians, students, and anyone who loves Pi Day. Makes a great birthday gift!