I'm fine with this kind of armor(Ashley's) for females in ME:A.

CO: Ashley, report to the armory.
Ashley: Huh? Why?
CO: To be fitted for your new breast sculpture armor. Don't argue, just go.
Ashley: Aye, aye, skipper.
(at the armory)
Armorer: Oh, good, you're here. Please remove all of your clothing from the waist up.
Ashley: Wut? Why?
Armorer: So we can take a body cast of your breasts. Your new armor must be custom made for an exact fit.
Ashley: But my breasts aren't exactly the same every day of the month, if you catch my drift.
Armorer: Doesn't matter. It will just be... more comfortable some days than others. Strip.
Ashley: Why are we doing this? I'm perfectly happy with a good, supportive sports bra and some room for the girls to move around in the old armor styles.
Armorer: Because someone higher up on the food chain decided it would be a good thing to display the exact shape of your unique breasts in an armor sculpture to be worn on your chest. Otherwise, noone would know what your breasts look like.
Ashley: But how am I supposed to aim and fire a rifle with that on my chest?
Armorer: Doesn't matter. Your Marksman skill won't work, anyway. Be the good soldier you've always been, and strip for us, please.
(later)
Armorer: Here is your new custom chestpiece with id markings, since it won't properly fit anyone else.
Ashley: Uh, okay, I guess. How am I supposed to put it on?
Armorer: It's a process. You start by spraying this lubricant on your breasts to make it easier for them to slide into place. Then you go through a series of shaking your upper body and circling the arms until every bit of your breast tissue is exactly where it needs to be relative to the rigid material of the chestpiece. Once the tissue is all in place, we turn on some internal processors designed to keep everything where it's supposed to be, so you can move around with no slippage.
Ashley: How long is this gonna take?
Armorer: We've found that, with practice, most users are able to successfully armor up in less than an hour. Many of our users have developed the habit of leaving their armor on at all times, so they are ready for action.
Ashley: Let's get on it with, then.