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Design, Invent, Print!

Men’s 80th Birthday T Shirt Gift - Square Root


Welcome to our original, 80th birthday, 1939 Square Root design, printed on an exceptionally soft, quality, 100% ring spun cotton men’s t-shirt.

When you gift this super soft shirt, the lucky birthday boy will immediately know and appreciate your efforts to secure one of the best, printable shirts available, one the receiver will treasure for years to come.

This is an amazingly soft 100% cotton t-shirt, which has a finer, smooth-faced and durable finish.


  • Fabric: 100% cotton
  • Weight: 203g


  • Size: S - Chest: 34-36 inches
  • Size: M - Chest: 38-40 inches
  • Size: L - Chest: 42-44 inches
  • Size: XL - Chest: 46-48 inches
  • Size: 2XL - Chest: 50-52 inches


With arms down at sides, measure around the upper body, under arms and over the fullest part of the chest.


  • Pre-shrunk
  • Seamless twin needle collar
  • Taped neck and shoulders
  • Twin needle sleeves and hem
  • Tubular body
  • Safety green is compliant with ANSI/ISEA 107 High Visibility Standards

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