Shell: HIR TH (high resistant thermoplastic) high resistance varnished thermoplasticNumber of shells: 2 shell sizesVentilation system: front air intakes and lateral extractorsFabric: Dry Comfort with antibacterial treatmentInterior: removable and washable (including the neck roll)Visor: clear City 11 polycarbonate scratch-resistant visorVisor mechanism: XQRS (Extra Quick Release System) with Double Rail for removing and reattaching the visor and peak in seconds, without toolsClosure system: micrometric adjustment buckle