If you have been in the gym for some time and put on size you may have experienced the struggle of finding clothes that fit. Very few clothing companies make clothes for the bodybuilder physique. Many bodybuilders argue how incredibly hard it is to find a pair of jeans! If slightly bigger guys than the average person have trouble finding clothes how hard is it than for Mr Olympia physiques to find nice clothes? They probably have to get everything custom made besides gym wear.
Watch pro bodybuilders in suits, it definitely looks a bit strange to see such big guys wearing fancy suits.