HelmetShell: HIR TH (high resistant thermoplastic) high resistance varnished thermoplasticNumber of shells: 2 shell sizesVentilation system: rear extractorsFabric: soft sponge fabric with antibacterial treatmentInterior: removable and washable (except for the nape protector)Visor: clear City 6 polycarbonate scratch-resistant visorClosure system: quick-release buckle