Bell Full 9 Full Face Carbon Emblem Helmet Large: 57-59 cm / 20" - 21.625" Overbrow ventilation ushers cool air over the head Magnetic cheekpads swap in and out effortlessly Soundtrax is Bell's system of built-in speaker pockets and integrated audio cable routing Integrated accomodation of the eject helmet removal system allows gentle removal of helmet from rider's head in case of injury