Alpinestars Blacktrack Leather Jacket586901362 Product Description Alpinestars modern interpretation of the classic biker jacket Equipped with a detachable thermal vest with 80g insulation at the front, adds to performance and versatility Combines premium 1. 0 1. 2 mm lightweight, supple bovine leather with a tailored fit Leather is dip dyed, and the oils used during the process results in a more natural finish with superior overall softness against the skin Shoulder and elbow armor