Tiny head, great fit with size S.
I won't hold anything back...I have a small pixie head and face, and this helmet fits me very well without looking like a giant helmet on an ants head! LOL. Seriously, this helmet fits nice and snug with no pressure points. The strap system allows plenty of room for adjustment and when tightened on it sits in a non-choking position. I love this helmet and am ecstatic to have more protection over my head! As an aside, the color and pattern is unique and fun. This is a well made and designed helmet. My bike visor does fit under for when I'd like to block the rays. I use the helmet for MTB riding and horseback-riding. I love the idea of deeper and heavier protection, especially over the cerebellum. Buy it, be safe!