Dont normally leave reviews but understand how helpful they can be. I have somewhat of an oval head and the helmet (Med) would feel as though it was closing in after 20 minutes of riding, roughly. I got the thinest option available in the Medium fitting (can't recall which one exactly) and it is beyond my expectations. I still have to deal with it after a long period of time, but its so long and far between that I am happy with the helmet I ave. [Thats the cheek pads & the outer shell i replaced. Both medium fitting but at its thinnest - theres a site that helps determine the sizings in a graph so best look at that
规格图表
A.为获得头盔的适用尺寸,请将卷尺在耳上约 1 cm 处,围绕头部最宽处一圈。
将所得测量值对照尺寸表。