HJC Marvel The Punisher CL-17 Men's Street Bike Motorcycle Helmet - MC-5F Medium ACS (Advanced Channeling Ventilation System) provides full front to back airflow which flushes heat and humidity up and out SuperCool Interior made from moisture wicking fabric Crown and cheek pads are fully removable and washable Pinlock-ready (Pinlock lens insert sold separately) RapidFire Shield Replacement System provides ultra-quick and tool-less removal and installation of the face shield