Alpinestars race proven PU knuckle protection system features advanced airflow ventilation and thermoplastic PU for superior impact and abrasion resistance. All leather construction. Perforated leather fingers, finger gussets and palm for maximum cooling without compromising safety. Innovative open back knuckle design with perforated top panel. Accordion flex panels on fingers. Short glove design with extended cuff protects external wrist area. Foam filled lateral wrist sliders. Reinforced external padding on thumb. Hook-and-loop wrist closure. Claringo and leather palm reinforcements for better grip and abrasion resistance.