A-4 Chest Protector from Alpinestars offers the ultimate level of upper body protection. Featuring front and back hard shell guards made of a poly-material blend, this products guarantees flexibility along with lightweight, coimbined with high ventilation and comfort thanks to multiple holes on the panels and the soft bio-foam padded chassis. The closure system is based on an innovative strap that secures a quick, easy and stable fit, which makes, at the same time, this product suitable for a broad range of riders. Alpinestars BNS neck support compatible.