"He wears a coat."
Translation:On nosi płaszcz.
Everybody says płaszcz. But outwear that is clearly "płaszcz" while still very fashionable is not as commonly worn. and when in doubt some people say "kurtka". this woman is wearing "płaszcz" https://static.shwrm.net/images/h/2/h255f7c741b9307_500x643.jpg?1442301761
and there is no other word that is more common to describe it