This helmet fits comfortably and does not make you look like a bobble head especially if you have a big dome. This will probably fit round melons better than oblong.
It's not a "certified" helmet but if a regular helmet doesn't fit you comfortably then this is better protection than a beanie.
On the downside, the felt on the helmet liner is not sturdy. The velcro attaching the winter liner can tear the felt off the inner liner on the helmet. This seems to be an ongoing issue for Bern since the same problem existed on my baker helmet. Otherwise a decent lid.