T-shirt - Ready-made design - SHIT

In this design, the color of the design depends on the color choice of the shirt.
Dark shirts have a white color and light shirts have a black color.

Design comes in two versions:
So happy I'm "thirty-ninety"
So happy I'm in my "thirties-nineties"

The shirt is unisex and made of 100% organic cotton from Stanley/Stella.