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Constantly Irrational - Pi Day Math & STEM Humor T-Shirt

Qty:
Basic Dark T-Shirt
-$1.20
+$8.45
Black
Vivid Printing: White Underbase

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About T-Shirts

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Style: Basic Dark T-Shirt

Comfortable, casual and loose fitting, our heavyweight dark color t-shirt will quickly become one of your favorites. Made from 100% cotton, it's unisex and wears well on anyone and everyone. We’ve double-needle stitched the bottom and sleeve hems for extra durability. Select a design from our marketplace or customize it to make it uniquely yours!

Size & Fit

  • Model is 6’2” and is wearing a medium
  • Standard fit
  • Garment is unisex sizing
  • Fits true to size

Fabric & Care

  • 100% cotton (Heathers are a cotton/poly blend)
  • Double-needle hemmed sleeves and bottom
  • Imported
  • Machine wash cold

About This Design

Constantly Irrational - Pi Day Math & STEM Humor T-Shirt

Constantly Irrational - Pi Day Math & STEM Humor T-Shirt

Celebrate your love for the infinite with this clever Constantly Irrational T-Shirt. A must-have for mathletes, engineers, and science enthusiasts, this design features the Greek letter $\pi$ (Pi) alongside the witty phrase "Constantly Irrational." It’s a brilliant play on words that captures the essence of the world’s most famous mathematical constant—a number that never ends and never repeats. Whether you’re a calculus pro, a high school geometry teacher, or just someone who enjoys a high-brow pun, this shirt is the perfect formula for style and humor.This classic apparel piece is the ultimate uniform for Pi Day (March 14th), math competitions, or casual days in the lab. It serves as a fun conversation starter that bridges the gap between complex mathematics and everyday wit. It’s a thoughtful gift for STEM students, data scientists, or that friend whose personality is just as "constantly irrational" as the number itself. Perfectly balancing academic pride with a lighthearted aesthetic, this tee proves that being a "math person" is always in style. Crafted from soft, breathable, high-quality cotton, this t-shirt is designed for maximum comfort whether you're solving equations or grabbing coffee. The bold typography and crisp Pi symbol are printed with eco-friendly, fade-resistant inks to ensure the punchline remains sharp and clear through every wash. With a comfortable fit and durable construction, this math pun t-shirt makes an exceptional graduation gift, a unique treat for your favorite professor, or a proud wardrobe staple for anyone who embraces their inner nerd.

Customer Reviews

4.7 out of 5 stars rating31.9K Total Reviews
25012 total 5-star reviews4882 total 4-star reviews1092 total 3-star reviews488 total 2-star reviews455 total 1-star reviews
31,929 Reviews
Reviews for similar products
5 out of 5 stars rating
By Jenny S.September 9, 2025Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wore adult large and 5’9”, 110# female wore adult medium . Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5 out of 5 stars rating
By Jenny S.September 9, 2025Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Grandma wore adult large with long sleeve shirt underneath. Tall girl adult medium. Dark haired male adult large. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5 out of 5 stars rating
By Jenny S.September 9, 2025Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wearing adult large and female wearing adult medium. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back. They printed random cupcake image I downloaded from internet with no problems! Looked perfect! Front design was stock from zazzel.

Tags

T-Shirts
constantly irrational t shirtpi day math pun apparelfunny stem teacher giftmathematical constant symbol teenerd humor graphic shirtengineering student humor gearmathematics science nerd giftgreek letter pi clothingcalculus and geometry puncustom science geek wardrobe
All Products
constantly irrational t shirtpi day math pun apparelfunny stem teacher giftmathematical constant symbol teenerd humor graphic shirtengineering student humor gearmathematics science nerd giftgreek letter pi clothingcalculus and geometry puncustom science geek wardrobe

Other Info

Product ID: 256587132224930498
Created on: 4/21/2026, 5:03 AM
Rating: G