The distinct lack of boobs in the armour is a good thing, I cant stress this enough
Christian armour is called the armour of God, Eph. vi.
Cosimo was an able bureaucrat, not a soldier, so the armour is fancy dress, but this image says "invincible Machiavellian prince".
As the sense of Ã‚â€˜breathing-placeÃ‚â€™ appears to be inapplicable to the earliest use of the word (see sense 1) in French and English, the name may originally have been given to the piece of armour from a real or fancied resemblance to some other article so designated.
At close range firearms would pierce even plate armour, which led to the retirement of plate armour from the field (obsolete).