Clair DeVrieswrote a review of Giro Xen Helmet on October 2, 2010
This helmet is awesome and fits my head perfectly. It seems to be good for riding, and does not move on your head while you ride. It has good coverage of your head incase you fall. I don't know how well it handles if you fall on your head, I have not fallen on my head lately. My last giro got a dent in it from falling, but is still holding up. This helmet is better and more durable, so we will see how it holds up.