If you rig your armor and flight suit like the real one, it should be no problem cleaning the flight suit. The elastic pieces that run through the slits are not connected to the fligh suit at all, there are snaps put into the back of the armor that the elastic attaches to. You just unhook one side of the elastic at the snap, slide it through the slit on one side, around you leg, through the slit on the other side, and snap it into the leg armor on the other side. Nothing permanently attached to the flight suit at all, so evertime you take your costume off, you can clean the flight suit without any extra work.
I'm not sure if that answers your question or not. But the snaps aren't big enough to really press into your legs, plus, you don't want the armor that tight on your legs anyway. The elastic should give enough to prevent any discomfort.