Do you know anything about WWII white undershirts?

[BigBrother]

I've seen in many History Channel documentaries, etc., these very short-sleeved undershirts worn by Navy service members:

 

https://maritime.org/pres/potrack/pots.htm

 

I'm not sure if these were common to the other services as well.

 

Do you know much about these? I've been looking for 1950s-style t-shirts (think rolled sleeves or just plain short like here) and these look interesting to me. I know some of the reproduction sites like At the Front have these, but as always would love to learn from you guys!

 

Thanks.