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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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Square root of 625 years old
Designed by Apparletics
You know someone who celebrates his 25th birthday soon and loves math? Then this t-shirt is the perfect gift!
Available on +32 products

Unisex T-Shirt

Square root of 625 years old by Apparletics