If you are a superhero (whether main hero, Sidekick, or even just part of a heroic army), odds are you wear a cape. Okay, not really that likely anymore, especially since the Silver Age, but capes are a typical thing for superheroes. The reason for the cape goes back to the first Comic Book Super Heroes. Most prominently, Superman's outfit specifically mimics that of early 20th-century circus strongmen, who often wore a similar cape/singlet design as a costume. Their simple bold colors were also conveniently easy to reproduce in early print comics. Often paired with Superheroes Wear Tights.