Acceptable but.....not exactly comfortable.
I've got a very nice authentic pair that I use with my TIE Pilot costume. They look great and they feel pretty good for about 2 hours...then...not so much. Even with several different layers of padding and insoles those things will kill you after a long day of trooping.
And while they work for pretty boy pilots and Nancy Boy officers I'd imagine a mando would wear something a bit more practical out in the field. You're call though.