double mirror anti-fog HD / full season helmetAnti-glare anti-fogscientific ventilation slot for headphone reserved8 major updates Reloaded the German tankhigh quality road bike thieves01. Simplify the body theft 02. anti-fog lens HD03. The ABS housing is impact resistant 04. windproof chin guard05. Lining breathable, absorbent and comfortable sweat 06. Five large vents07. slot Bluetooth headset aside, certification 08.3CSuitable for walking in various scenesHard as a shieldShell strong ABS, anti-fall, anti-shock, anti-shock, combined with aerodynamic helmet designantifogging lens external high definition standardWith anti-ticket lenses, vision is clearerHidden SunglassesFree to flip up and down, anti-glare, the use of glasses myopia does not affectsimplified openingsPrinciple of aerodynamic rear mouth ventilation Ventilation Ventilation topLining fully detachableEasy to clean, easy to disassemble, comfortable and breathableWith windproof chin padSlot dedicated Bluetooth headsetMake it easy for you to answer the phone