Can anyone recommend me a thin cotton undershirt? I have some old fruit of the loom undershirts that are thin, but have only gotten so because I've had them so long. All those washes have really thinned them out. My wife wants to put them to use as cleaning rags! I've tried calvin kleins, munsingwears, hanes and they are soft and all, but the cotton is so thick that I can't wear them on hot days. Is there a thin cotton undershirt that is thin right out of the package? PS. I looked at that undershirt guy blog and he had no recommendations for a thin cotton undershirt.