It’s bad enough when a sci-fi setting has all the ladies wearing painted-on tights so snug that you can see all the way up their respective buttcracks, but then they go and do it with the armour, too.
Like, it’s armour.
It’s a solid chunk of heavy, rigid material.
How does that work?
How do you walk with a pair of inflexible domes tightly cupping your glutes?
Hell, how do you even stand when you’ve got a quarter-inch durasteel plate wedged so far up your ass you’re tasting metal?
Makes no sense.
While we’re certain skin-tight metal butt armor happens a lot in media (battle thong is by far more popular), the best, most literal examples of it from our blog were those chafiest short shorts ever:
And this full body atrocity (whole thing is arguably NSFW, open link at own risk):
That said, butts or no butts, armor so snug it looks like shiny bodypaint/metal spandex is a blight on costume design that should be stopped.