pretty good actually, don't let the thin profile fool you, seems kinda flimsy at first but when you get tagged pretty good, your not rocked as hard. the cheek padding is kinda thin so if you got a big nose might not be to your liking, but if your asian like me then it shouldn't be a problem.
The lining is kinda rough at first against your skin, but when you start sweating you hardly notice how rough it is. Plus its another type of grain leather so it wont slip around as much. keeps the headgear in place. wont move around as much.
adjusting it to your headsize is pretty straight forward with the two velcro straps to tighten or loosen it. with the back of the head padding and top of the head padding is good too. but totally depends on your sparring partner isnt sneaky enough to hit you there, but the added protection is a plus.the vision most of all is out of this world. great line of sight, and doesn't obscure your vision at all.
I would recommend this product. overall a great piece of gear to own.
just so you know I do have an older model, so the newer ones might have slight changes visually, and the lining I THINK is different.