It’s really a costume that makes a superhero? Ever wonder why Batman is considered a superhero despite having no powered? It’s the costume. Ever wonder why John Wick isn’t? Of course not, he doesn’t have a costume.
That being said that behind the scenes there are a lot of stories about how famous superhero costumes came to be. Whether it’s from the movies or comic books – a lot goes into making a costume.
Sometimes artists change their minds on designs and we end up with radically different designs to what were initially planned. Sometimes there are changes made to costumes because actors don’t like working in them. Such as Christian Bale’s discomfort in his Batman Begins’ suit leading to the creation of the new suit in The Dark Knight.