The Alpinestars GP Pro Leather Motorycle Jacket is constructed premium 1.3mm full-grain leather for excellent comfort, fit and durability. This offers a sports racing sryling with advanced protective qualities. This features external Dynamic Friction Shield (DFS) protectors in the elbows and shoulders which feature injection-moulded shells and dual density foam padding, removable, internal protectors offer superior impact protection to shoulders and elbows, snap connection system allows integration of Bionic Race Back Protector for the ultimate in protection, chest pad compartments with PE padding (Alpinestars Bionic chest pads available as accessory upgrade) advanced Microfibre accordion stretch inserts in key articulation areas on back and elbows for excellent performance fit, extensive advanced Microfibre stretch panels on chest, underarms and waist for range of movement, integrated PE comfort padding on the chest, torso, coccyx and back further enhances fit and comfort while riding, high-density perforations on chest and arms offer airflow and help regulate body temperature, 3D mesh sleeve comfort cuff edging for breathability; cuffs incorporate zip closures for secure and customisable fit, soft, 3D mesh and leather collar construction for breathability and comfort, Moto GP profile, perforated, back hump for improved aerodynamic and ventilation performance, multi-panel lining incorporates 3D mesh inserts to improve comfort, fit and ventilation; liner is removable and can be easily washed, reflective detailing for improved rider visibility, premium YKK fasteners and semi-auto locking zips used throughout garment, full circumference waist connection zip allows attachment to Alpinestars riding pants, D-ring waist adjustments feature Velcro straps for secure and personalised fitting and an extended lower back profile for improved lumbar coverage and reduced wind chill.