1.2-1.4mm full-grain leather for excellent abrasion resistance. Ergonomically placed stretch panels for optimal flexibility. Removable CE certified soft protectors in elbows and shoulders. Chest pad compartments with PE protection (Alpinestars Bionic chest guards available as accessory upgrade). Removable thermal vest liner. Connection zippers allows attachment to selected Alpinestars leather and textile pants. Back protector compartment with PE padding (CE certified RC back protector available at Motostrano.com as accessory).