The Alpinestars GP Force Chaser two-piece leather motorcycle suit is CE-classified AA with Alpinestars GP CE protectors at the elbows, shoulders and knees and Nucleon Bio-Flex hip protectors. Removable and replaceable knee sliders provide added impact resistance, and DFS Dynamic Friction Shield Lite shoulder sliders. The GP Force Chaser is compatible with the Alpinestars Tech-Air 5 Airbag System for optimum protection. (sold separately) A leather multi-panel construction with strategically accordion stretch panel inserts gives an anatomical performance for sports riding and a superior fit. Inner knee suede reinforcement provides added grip, while calf expansion panels with ribbed stretch inserts allow a custom fit. The aerodynamic back hump is ventilated for maximum airflow, and perforation in critical areas provides optimum air circulation. A 360-degree zip attaches the jacket to the pants to make the 2 piece suit.