What They Tell Us:
If you plan on fighting crime while sporting a pair of boobs, you can find whatever you need at the same fetish shop that outfits half the Matrix. We can't tell you why this is the case, just like we can't tell you why blind people shop for sneakers at the same place as priests and basketball referees. Nor are we complaining. Be it leather, latex, PVC or rubber, if it's skin-tight and it's shiny you are apparently required to fight crime in it.
In Iron Man 2, Black Widow is revealed to be Scarlett Johansson after her gimp mask comes off in a fight.
Why It's Bullshit:
Ms. Rocket's sampled the full range of fabrics available to superheroes, and has pretty convincing arguments as to how you'd be just as well served in Velcro parachute pants. "Leather is warm and doesn't move easily. Latex is very warm, doesn't breath at all and people have been known to pass out while wearing it."
Also not helping: the corset.
"Why the crap would I wear either of those if I wanted to kick someone's ass?"
Can it stop traffic, yes. Can it foil a bank robbery? Only if the bank is air conditioned, and I don't have to sneak up on anyone without my boobs making a squeaking noise.
We suppose there's probably a reason most competitive sports don't outfit their players in full body leather or latex suits. But that still leaves us with spandex. It's what track stars wear when they want to move as fast as humanly possible. It's what people from the future wear to match their aerodynamic bald heads. It's what musicians wear when they want to let you know that the 80s was a ridiculous decade.
"Yes, spandex definitely moves with you but first of all, you have to deal with panty lines, and nobody wants that. More importantly, a splinter could put a hole in it." We suppose that when "fighting knife wielding people wearing pointy costumes" is your job description, you'd want a fabric that is a little more resilient than extra-strength panty hose.
Especially when every square-inch of that fabric is being pushed to the very brink of its tensile strength by your heaving flesh. Hell, one well placed head butt from Batman, and we'd imagine it might just vanish like a burst balloon.
Just one tiny rip and poof. Gone.
And then we'd keep imagining it over and over again.
2Where Am I Supposed to Put That...?
What They Tell Us:
If a female character is going to have a trademark weapon, it had better be one that she can carry in one hand and has no risk of dropping at any time.
Extra whip? That's... that's just crazy. Hey, look at my junk!
Who the hell cares where they stuff all their gear? Whatever it is, they can probably just tote it along in a purse. Besides, Rogue's got a leather jacket and Jean Grey has pockets which she never uses. Isn't that enough cargo space for a female superhero?
We assume that little sash has a special place for her cell phone.
Why It's Bullshit:
Batman has his utility belt. Gambit has a huge trench coat loaded with pockets. Punisher has a mobile command unit. And why? Because it's helpful to have weapons when fighting crime. Batman spent years training on a mountain side so that he can kill anyone he comes across with his bare hands and even he needs more gadgets than any non-magical utility belt can hold without utilizing extra storage space.
We'll stop showing you how Batman's utility belt works when he admits it's true.
Meanwhile, female crime fighters and villains are asked to get by on their feminine wiles and distracting promises of partial nudity. You don't need to be fighting crime for skin tight clothing without pockets to start being a pain in the ass.
"These costumes are tight... very tight... and I don't have any pockets. I have nowhere to put my wallet, never mind a two-way communicator, or any of the other gadgets I might need."
For an example of what Ruby's talking about, here she is in the costume she made for building-scaling burglar Black Cat:
Somewhere in there, she's sporting rope and grappling hooks.
"More fashionable utility belts [for women] please!"