A nice touch here is the graphic print that has a hand-painted watercolor look.
VTG Bart Simpson T Shirt 1990 Original L RARE Light Blue Single Stitch GROSS MAN
What stands out about the short sleeve is the subtle curve at the hem.
VTG 1994 World Cup USA Tie Dye T Shirt Soccer Red Blue Single Stitch Boxy XL
This shirt is built for men who like a bit of extra space in the torso.
Vintage Single Stitch USPTA Tennis T Shirt As Is Lrg
A nice detail is the tagless collar, which men often prefer for comfort.
Stitch Lilo Big Face Shirt, Retro Stitch Shirt
You get an unbranded tee that doesn’t shout but still looks great.