Viper is a novelty of the 2017 Premier collection. It s an high-quality full-face helmet that combines safety, comfort & performance. Its modern & aerodynamic design makes it quiet & suitable for both tourism & sports use. Its outer shell is molded in high strength thermoplastic material & with the capacity to dissipate the energy deriving from an impact. Together with the inner shell, molded in eps of different densities & in two sizes, provides excellent protection in case of a crash. The ventilation system operates through three adjustable air vents. The first is positioned on the chin guard, while the other two are on the top of the shell. From these vents the fresh air enter & can escape through the rear adjustable air extractor. The visor mechanism is simple & functional, & does not require the use of tools to remove or fix the external visor. The scratch-resistant visor is moulded in polycarbonate & is suitable for use with Pinlock®. The practical scratch-resistant internal sun shield is easily activated with a switch, positioned on the lower left of the helmet. The inner linings are breathable & hypoallergenic, fully removable & washable, & ensure maximum comfort even after prolonged use. The retention system is equipped with a practical quick release buckle for micrometric adjustment. The convenient wind stop & removable nose guard complete the features of this helmet. As is the case for all Premier helmets, the Viper conforms to ECE 22-05 homologation. Viper is available in three different graphic version. Extended 5-year warranty To benefit from the extended 5-year warranty, you must register your newly purchased helmet with Premier within 30 days. Please refer to the Premier warranty policy. After the regular 2-year warranty has expired, you must contact Premier directly. Register here Note Please note that as long as nothing else is written in the article description, all helmets that have a visor as standard will be delivered with a clear one, even if it is shown differently.