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  • Solid color t-shirts are 100% cotton; heather grey is 90% cotton, 10% polyester; charcoal heather is 52% cotton, 48% polyester
  • Ethically sourced
  • Slim fit, but if that’s not your thing, order a size up
  • 4.2 oz (145g), but if that’s too light, try our heavier Classic T-Shirt
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I'm Over 18 Square Root
Designed by TheShirtYurt
Let the world know that you are legal… legally authorized to solve for the square root of 324! Which is 18. If you didn't know that you probably shouldn't wear this anyway. Delight the world with your mathematical math skills, and confound the geeks without a calculator.
Available on +21 products

Unisex T-Shirt

I'm Over 18 Square Root by TheShirtYurt