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Design, Invent, Print!

20th Birthday, 1998 Shirt, 1998 Legend. Men’s T-Shirt, 20th Birthday Gift, 20th Birthday Idea, 20 Birthday Present, 20 Birthday Gift!


Design, Invent, Print! is proud to present a unique and exclusive 20th birthday, 1998 'Square Root 400' shirt design, printed on an exceptionally soft, quality, 100% ring spun cotton men’s t-shirt.

This is another exclusive and original, design by Design, Invent, Print!

If you require a different birthday design or birth year please check the men's birthday section of our store.


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.


- Ultra tight knit surface
- Seamless twin needle collar
- Taped neck and shoulders
- Twin needle sleeves and hem
- Tubular body

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