Small/Medium: 54-58 Cm - 6-3/4"-7-1/4"
Large/X-Large: 59-61 Cm - 7-3/8"-7-5/8"
The helmet is great, BUT there were no replacement lenses and no information on how to order any, ie like transparent, yellow, or any other color for that matter. Meaning you can’t or shouldn’t wear this helmet unless the sun is shining....!
Great helmet. Got it for my wife. She loves it so far. At this price it's a steal.
Great helmet, great seller, fast shipping