An ultra-lightweight protective system offering excellent upper body protection against impacts and roost, the protector features front and rear hard shell plates backed with bio-foam padding for a secure and comfortable snug fit. Quick and extremely easy to put on it provides extended padding to protect against tire roost without obstructing arm movement and is fully compatible with Alpinestars Bionic Neck Supports. Features Features a new CE-certified back protector. Extended padding to offer more protection against tire roost without obstructing arm movement. Removable shoulder pads and back protector for high levels of customization. Stone shield and back protectors are constructed from a high performance polymeric blend for optimized flexibility and excellent weight saving. The protector’s plastic shells are perforated for maximum breathability and cooling ventilation. Adjustable elastic closure system features newly designed, quick and easy-to-use buckles that fit a broad range of rider body sizes. Thermoformed padded chassis for optimized levels of comfort and close-to-body fit. Adjustable shoulder straps for optimal fit. Bionic Neck Support compatibility. Silicon BNS pull tabs for easy and safe engagement of the BNS. Integrated Y-strap system for modular use of the back protector with fast and convenient mounting.