Of course they do. If somebody like me even who has about three sets of clothes three sets of Suits a couple each and different sizes for whatever body weight or body fat I am it's very very safe to assume Pro bodybuilders who are much larger than me have different sets of clothes for whatever body weight they are whether they are pre-contest or whatever, off-season or whatever you want to call it big and blue fee as gh15 called it, or completely off cycle and a little small and puffy.