textile epiphany

So one of Wim's t-shirts mysteriously has a hole in the armpit, and I was trying to come up with how that could reasonably have happened. (Any guesses still welcome; the field is wide open here. "Poked in the side by a Roman spear" and "starched armpit hair" are not really credible hypotheses.) Well, I thought, maybe the side seam rubbed against the armhole seam... wait. There is NO SIDE SEAM. I checked the other side. No side seam. No... vertical seams in other locations that I have somehow not noticed.

People, SOME T-SHIRTS ARE KNITTED IN THE ROUND.

And STEEKED.

WHY HAVE I NEVER NOTICED THIS?

I guess t-shirts with a curvier cut would always have side seams, and I do prefer those. It is possible that only the single default men's size is unseamed?

O BRAVE NEW WORLD THAT HAS SUCH GARMENTS IN IT.