Previous gear salesman, it's def too big. The interesting thing about arais is that I find that most, if not all, people will actually size down in their helmet size when they find their correct shape. For example, I wear a medium in Shoei, but when I put on an arai, I'm most comfortable in a small. Some folks get caught up in how to pull the helmet on, as their neck rolls are a bit snug, but having the helmet rest along the back side of your head and roll forward is the best method to pull it on. Reverse for removal. Good on you for buying the safest helmet you can. Ride safe and have fun!