1.3 mm full-grain leather and perforated leather construction. Stretch Kevlar® fabric panels. Multi paneled graphic design. Embroidered Alpinestars logos. Removable CE certified Bio-armor elbow and shoulder protectors. Ergonomically placed stretch Kevlar® panels for optimal flexibility. Perforated leather panels for ventilation. Pre-curved sleeves for riding comfort. Leather accordion and adjustment tabs on the waist zones for optmal fit. YKK zippers. Waist zipper connector allows attachment to selected Alpinestars leather and textile pants. Chest pad compartment with PE protection. Removable thermal vest liner. Back protector compartment with PE padding . Soft neoprene collar and cuff construction.