I bought these to sleep in and knock around the house on the weekends doing chores. They are really comfortable to wear and sleep in.  The material is fairly thin and sheer in places. My only complaint about these is the bottom edge rolls up; this may be caused because the tank is a wee snug on me.  If they were a bit more loose and bit more opaque, I'd definitely wear these outside the house.  (And ladies...they make the 'girls' look good!)