Tech-Air® Race compatible. Tech-Air® 5 ready. Snap connection system allows integration of CE Level 2-certified Nucleon Race. Back Protector (for use without Tech–Air® system). Chest and back pad compartments with poly-foam padding (CE certified Nucleon chest pads available as accessory upgrade). Hyper-Res Stretch Fiber (HRSF) stretch inserts on back and underarms Waist connection zipper allows attachment to Alpinestars riding pants Premium YKK® zippers used throughout. Mesh liner is held in position via hook and loop grip connector on sleeves. Removable security strap, keeps the jacket positioned in event of an accident According to European statuatory law, the CE mark is a conformity requirement for the marketing of this product. The following standards apply to this product: CE Category II PPE Regulation (EU) 2016/425 - AAA class CE Level 1 EN1621-1:2012 Alpinestars GP-R shoulder and elbow protectors Pocket for a CE Level 2 EN1621-2:2014 Alpinestars Nucleon back protector The Missile Leather Jacket is anatomically mapped for optimized levels of improved performance fit and comfort. Constructed from a premium leather, this jacket has class-leading protective features inside and out, and is designed to accommodate Alpinestars Tech-Air® Race airbag system. Due to its ergonomic engineering, this CE certified jacket can equally be worn on its own, resulting in a very versatile performance riding jacket.