He does it in the comics ALL the time, the cartoons as well. I just wanted to know if he were in real life, could he do that? Say he had the body of an olympic class athlete (which he does apparently), could he?
I have never seen gymnasts wear capes, so I assume that the cape would get in the way. I know for comics and cartoons the cape ALWAYS falls on his back so as to avoid the danger he would be in if it fell over his face. So could he do it?
If he couldn't then the only solution that would make it possible would be if he put bits of metal in his cape and magnets in the back of his suit. Then the cape would automatically stick to his back. even it flopped a little it would still go back.