Alpinestars ATL leather jacket with a relaxed fit and 1.2-1.4mm full grain leather for excellent abrasion resistance 1.2-1.4mm full grain perforated leather panels for increased cooling on shoulders, inner arms and upper back Relaxed fit with pre-curved sleeves for riding comfort with Alpinestars flat, multiple stitched pattern, main seam construction for maximum tear resistance and waist adjustment with Velcro and leather tabs YKK zippers Waist connection zipper allows attachment to selected Alpinestars leather and textile pants Removable CE-certified soft elbow and shoulder protectors, chest pad compartment with PE padding (Bionic Chest Guard available as accessory) back protector compartment with PE pad (CE-certified RC Back Protector available as accessory) Removable thermal vest with internal pocket layout duplicating the main jacket system for ultimate convenience Low collar with multi-panel construction and mesh insert for comfort Die-cut ventilation holes for increased cooling Silicone injected rear logo, die-cut leather logos on chest