Constructed with an advanced reinforced single-layer soft technical poly-fabric textile for durability & Alpinestars exclusive Drystar® membrane for 100% waterproof performance in wet weather conditions, the Sirius Drystar® Tech Shell Jacket is equipped with Nucleon Flex Plus shoulder & elbow protectors for effective & proven protection against impacts. Features Soft fabric main shell construction for the optimum blend of durability, protection & light weight Drystar® laminated membrane construction for 100 per cent waterproof performance & high levels of breathability Lightweight & thin construction for enhanced rider comfort Elongated rear for greater coverage when riding Side pockets for high levels of security & real-world practicality Ergonomic collar for enhanced rider comfort Emergency hood with peak for effective protection against the elements off the bike Elastic bands on arms & a buckled cuff adjuster for the optimal riding fit Large tooth Vislon® zipper for ease of use with gloved hands Tailored fit on bottom for a slim line fit Elastic waist & cuff adjusters for the perfect fit when riding Chest & back pockets can accommodate the Nucleon back & chest protectors, available as an accessory upgrade The following standards apply to this product Fully riding garment to Category II pr EN17092 draft standards – A class Level 2 EN1621-2:2014 Alpinestars Nucleon back protector (available as an accessory upgrade) Level 1 EN1621-1:2012 Alpinestars Nucleon Flex Plus shoulder & elbow protectors