1.2-1.4mm full grain with aged top finish leather for excellent abrasion resistance and vintage styling. Multiple stitched main seam construction for maximum tear resistance. Removable thermal vest liner with pocket layout duplicated as main jacket. Pre-curved sleeves for riding comfort. Ergonomically placed stretch panels for optimal flexibility. Accordion leather flex zones for optimal fit. Waist adjustment and large accordion side stretch panel. Removable CE certified soft elbow and shoulder protectors. Chest Pad compartments with PE padding. Back Protector compartment with PE padding. Waist connection zipper allows attachment to selected Alpinestars leather and textile pants. YKK zippers and snap down collar fastenings. Over-stitched die cut leather logos on chest and back.