- Familiarity: I've put it through the wringer
- Fit: Runs small
- Size Bought: M
So. I don't know what it is but the Medium in this helmet fits narrow. I've been struggling with it trying to make it fit right but it always feels narrow around above my ears and slowly moves up my head as the day goes on. Recently tried on some Sweet, Anon, and POC helmets in medium and they fit so much more like an actual medium.