Got this helmet at the end of the season this year. My last hemet was also a Giro so when I put it on it just fit like a glove. I was only able to use it once but there is still some snow on the hill....the vents are nicely placed and I really like the size adjustment, gives a nice fit. I have Oakley crowbars and they fit fine. Giro makes a great product and I would certainly by another of their helmets!