That's incredibly stupid and quite frankly, I almost think you're lying. How does that serve any purpose at all? The fact remains that a concave breastplate that points in to your sternum is doing nothing of use in terms of practicality or safety in combat. Nothing. Granted, breasts (male and female) take up space that can be accommodated for without hindering the wearer.

I am not lying, nor am I trying to argue.

Sorry, I'm merely trying to express my disbelief in the idea of someone using such armor in real life. Just... what?