The other reviewers were right...this is a serious "low profile" helmet. It sits low on the head and on the sides. FULL DISCLOSURE: I have girthy cranium at 24" and the LARGE fit perfect. but I would say if your head is bigger than mine...its not going to fit.
The "low profile" is perfect as it does not exaggerate my already enormous head. That makes me feel good. I despise "mushroom head".
The "up/down" and "ratchet system" work awesome in keeping the helmet comfortably snug in all the right places. It is for-sure the most comfortable helmet I've ever had.
I wish I could have got this in a different color, but the blue/white is OK (at $74.97 it's hard to complain). This helmet rivals most that are 2x or 3x the price.