AGV K5S AGV Medium Large - fits like a medium in most other brands. Pinlock/sun visor, light, comfortable, and breathes well. I'm sure someone will ask - build date of 02/2019. This helmet has been worn for one sprint race - 6 laps; out lap; in lap - so...8 laps. These are $470 new before tax. Original box included. $300 Shipped