A quick review of the new Akoury AK-66 CARBON MATTE. This helmet is Carbon Fiber. These are the smallest legal ultra light weight helmets in North America. My head measures 22 3/4 inches or 58 cm and the medium fits perfectly. I think AKOURY has the best looking DOT approved Beanie helmets out there. Here is the website for the helmet http://allforbikers.com/en/
