For the devoted sportsbike rider, Alpinestars presents the GP Pro Leather Jacket. External PU sliders and CE certified protectors provide a superior safety system, while stretch panels improve comfort and enhance freedom of movement. Premium 1.3mm full-grain leather for optimal abrasion resistance and durability. Aerodynamic, dual density back hump promotes airflow within the suit to improve ventilation. PU external sliders on the shoulders and elbows help reduce the risk of the rider being pitched into a tumble when sliding. Removable CE certified GP elbow and shoulder protectors provide excellent impact protection. Chest and back pad compartments with PE protective padding (Alpinestars back protector insert and chest guards available as accessory upgrade). Integrated Bionic Race Back Protector snap connection system. Lateral accordion stretch panels across the back assist body movement while on the motorcycle. Accordion stretch panels in the elbows help maintain proper fit and flexibility when in the riding position. Additional stretch panels in the sleeves. Inner mesh lining panel inserts work with outer stretch zones for a snug fit. D-ring waist adjustment affords a tailored fit. Internal waist connection zipper allows attachment with a wide range of Alpinestars pants. YKK auto-locking zippers offer secure closure.