@schmeckkkk asked me what the advantages and disadvantages of this helmet are,

and I decided that was a good enough question to get its own post.

So there are essentially three factors that are determinate for how a wearer reacts to wearing a helmet, and how that helmet limits or assists the user in combat.

These are sigh, breathing, and protection. Weight could also be considered a factor, but it is less important than the other three.

Almost invariably in the case of helmets, it’s a balancing act (like many other things come to think of it.) You have sight and breathing on one side, and protection on the other. Making one side better will limit the other.

On one end of the spectrum you have things like the Morion,

the Kettle Hat,

and everything similar to them.

They are effective helmets but with very little face protection (people often say no face protection, but forget that the rim is actually a form of face protection because it will stop or deflect blows coming down from above.)

This lack of facial plates is what gives them completely unrestricted vision and breathing however, very useful things on the field of battle.

On the other end of the spectrum sit helmets like the Armet,

the Bascinet,

and other similar helmets.

Fully enclosed, they offer the wearer maximum protection and near invulnerability from all but the most specialized forms of attack, but it comes at a price.

Breathing and vision become restricted, quite severely (though not as severely as many might believe, the fact that you can see out of the breaths, those holes in the face, is an often overlooked one.)

So, in the middle of the spectrum lie helmets like the Corinthian,

and the Barbute, who’s design in based directly in that of the Corinthian.

I would also include the Sallet in this mid-range category, though if it’s without a visor or bevor,

It leans more toward the Kettle Hat range, while when given a visor and paired with a bevor,

it leans more toward being like an Armet.

So, in terms of the Corinthian helmet itself, it’s quite the middle-of-the-road helmet. It offers good protection, especially against cuts, and also offers only slightly restricted vision and breathing.

The revival and popularity of this style in the late middle ages speaks to its effectiveness. Sure, it was revived due to a resurgence in classical ideology, but it wouldn’t have been as popular as it was if it didn’t work.

I hope this (somewhat longwinded) explanation has answered your question. Cheers!

Edit: I’m pretty sure I have an ask, so questions like this can be directed there.