1.2-1.4mm full-grain leather for excellent abrasion resistance. Multiple-stitched main seam construction for maximum tear resistance. Removable CE certified GP protectors. Ergonomically placed stretch Kevlar panels for optimal flexibility. Leather flex zones. MotoGP profile, ventilated hump for improved aerodynamic and ventilation performance. Soft neoprene, comfort cuff and collar construction. Chest pad compartments with PE protection (Alpinestars Bionic chest guards available as accessory upgrade). Patented calf expansion pockets improve range of calf fit. YKK semi auto-lock zippers. Replaceable PU sport sliders. Multi panelled lining construction. Die Cut ventilation. Die Cut leather 3D front chest logo. Micro injected logos.