Stealth SV helmet is suitable for people who love a sporty look but want the comfort of a GT FEATURES Shell Fibreglass and carbon No of shells 2 shell sizes Ventilation System IVS (Integrated Ventilation System) with channels hollowed directly in the shell 3D Interior 3D Interior Fabrics Dry-Lex with hygienic treatment Visor mechanism XQRS (Extra Quick Release System): shield replacement without tools in seconds DSS Dual lip seal visor Customizing PVM visor opening mechanism Visor GT2 clear polycarbonate scratch and anti. Inner solar visor ISVs Sun visor sun visor Retention System Double D Ready for Bluetooth Ready Bluetooth kit AGVoice Trademarks Bluetooth The Bluetooth trademarks are registered trademarks owned by Bluetooth SIG, Inc., Washington, USA Interior Fully removable and washable (including neck roll) Ventilation System Dynamic system with air intakes and rear extractors