The real question is
a) Leather
b) Chain
c) Leather & Chain ?
but you're ok that those same characters can double jump in mid-air and cast fireballs when they land, in full plate?
my point is, why make for boring looking armor just because they're more 'realistic' in a fantasy game. If it was a medieval simulation game, I'd be all for it, but in a fantasy game, I'm ok with boob armors and chainmail bikinis that protect more than a full body leather armor.