most uncomfortable would have to be etihad, those hats that wrap around the neck are really uncomfortable
the shirts are really hideous, and they tend to soak up every bit of sweat the body produces!
the pants the males wear have pleats on them! ewwww and the cut is not flattering at all
and the colours!

Grey i mean really!! can anyone tell me which other airlines have school uniform grey as a colour? whatever was Ettore Billota thinkin! (italian designer)