Do you wear a T-shirt under your outer shirt?

I’m talking old school fruit of the loom or Haynes white T-shirts. V Neck, Crewneck, or old school beater.
like these
http://abovethelaw.com/_old/v%20neck%20crewneck%20crew%20neck%20sleeveless%20t-shirt%20wifebeater.jpg

I started wearing underwear T-shirts as a kid because my dad did. I think they were required in the Air Force. He often wore fatigues at home and always had an undershirt.

I hate the feel of a outer shirt on my skin. Especially if I sweat. I got to have my Crewneck T-shirt at all times. Even sleep in one. :wink: I wore one under my gown the last time I was in the hospital. My ass flapped in the breeze, but my chest was warm. :wink:

I’m curious if underwear T-shirts are still popular? Are they only needed for dress shirts? Knit shirts? All shirts?

Closing duplicate thread.