Alpinestars Atem Leather Jacket Trained in the unforgiving confines of the race track, the Alpinestars Atem Leather jacket has been unleashed to run wild in the unpredictable expanse that is our public roadways. Bristling with CE protection, the tough leather construction has the pedigree to laugh at any abuse the hardcore rider can dish out. The adventure has begun CE certified shoulder and elbow protectors 1.3 mm high-grade leather construction with re-enforcements in critical impact zones Aramidic stretch Chest insert further improving fit and feel Cuff adjustment improves range of fit and comfort Critical displacement perforated panels on upper and lower body for improved ventilation External Alpinestars exclusive Dynamic Friction Shield DFS technology shoulder and knee protectors, race proven in MotoGP and WSBK MotoGP profile, perforated, aero hump on upper back for improved aerodynamic performance and ventilation Multiple, external, perforated leather panels with foam protector inserts Large accordion stretch panels help movement and comfort on the bike Aramidic stretch panels on sleeve areas to further improve fit and feel Multi panel liner construction and 3D mesh inserts to improve comfort and ventilation D-ring waist adjustment for precision fitting Removable security strap, keeps the jacket positioned in case of an accident feet first slide Chest pad compartments with PE padding Alpinestars Bionic chest pads available as accessory upgrade Multiple snap button system for integration with Alpinestars Bionic Back protector Neoprene comfort edge around collar