I couldn't bring myself to wear a flying suit in a cessna 150.... You can get away with it in a Yak 50, chipmunk or tigermoth etc.
I fly aeros in a cessna texas taildragger aand just empty my pockets before getting in the aircraft.
I don't think I have ever seen anyone wear a flying suit in a spamcan.. its a bit like wearing full racing leathers on a moped!