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21 Year Old Bday Geeky Math 21st birthday Gift T-Shirt

4.7 out of 5 stars rating
31632 Total Reviews |
by
Qty:
Style
Basic Dark T-Shirt
-$5.90
+$13.80
colour & Print Process
Black
Vivid Printing: White Underbase

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Style: Basic Dark T-Shirt

Comfortable, casual and loose fitting, our heavyweight dark colour 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 customise it to make it uniquely yours!

Size & Fit

  • Model is 188 cm 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

21 Year Old Bday Geeky Math 21st birthday Gift T-Shirt

21 Year Old Bday Geeky Math 21st birthday Gift T-Shirt

Celebrate birthdays with a clever twist! This funny math design uses equations and square roots to reveal the age, making it the perfect choice for math lovers, teachers, students, and geeks who enjoy a good nerdy joke. Great for milestone birthdays, classroom celebrations, or anyone who appreciates clever humour mixed with numbers. This witty math-inspired design turns age into a fun square root equation, bringing laughter and geeky charm to any party. Ideal for math teachers, STEM students, engineers, and puzzle fans, it’s a smart and funny way to celebrate birthdays with style. Perfect for cards, shirts, mugs, or party decorations.
Trendy_Birthday
Bronze
Artwork designed by
Manhattan, New York, United States
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Customer Reviews

4.7 out of 5 stars rating31.6K Total Reviews
24779 total 5-star reviews4893 total 4-star reviews1068 total 3-star reviews471 total 2-star reviews421 total 1-star reviews
31,632 Reviews
Reviews for similar products
4 out of 5 stars rating
By Jarrod H.28 May 2025 • Verified Purchase
Basic Dark T-Shirt, Navy Blue, Adult S
I found the shirt quality itself to be well made. Unfortunately I found that the image quality of the artwork is low resoultion. So the art and words aren't as clear. I probably wont buy another shirt to be honest, but I'm glad I supported the podcast of which I'm a fan of. I was just hoping that for the price I paid, it would have been of better quality.
5 out of 5 stars rating
By B M.24 December 2022 • Verified Purchase
Basic Dark T-Shirt, Black, Adult S
Zazzle Reviewer Program
this was good quality and perfect colour. Printing was great although when we all opened our secret santa gifts one of the other mechanics commented whoever got that for him missed out part time after the word mechanic Sorry I don't have any photos
5 out of 5 stars rating
By Anonymous21 November 2024 • Verified Purchase
Basic Dark T-Shirt, Black, Adult L
The T-Shirt I ordered arrived promptly and in good condition. My partner loved it. Very pleased with this purchase. Fay B.

Tags

T-Shirts
21st birthday celebrationfunny math birthdaynerdy birthday giftgeek humour designmath teacher giftstem birthday jokeunique milestone birthdayeducational birthday cardclever math designmath lover gift
All Products
21st birthday celebrationfunny math birthdaynerdy birthday giftgeek humour designmath teacher giftstem birthday jokeunique milestone birthdayeducational birthday cardclever math designmath lover gift

Other Info

Product ID: 235798625897268239
Posted on 10/09/2021, 10:17 PM
Rating: G