So few super heroes wear any type of armor. Magneto wears a helmet, but mostly to stop Prof. X's powers. Batman wears some. Ironman has a whole ass suit. Superman is indestructible so he doesn't need it. Captain America only has a shield. I think that's it.

You'd think we the amount of hand-to-hand combat they do they'd wear something to protect themselves. Even Vegeta knows to wear armor and he's stronger than like 99% of superheroes.