Suomy D20 Modular Helmet Lightweight, modular design with the ability to add the new Suomy Communication System Thermoplastic composite resin shell construction EPS liner is designed with Dynamically Variable Resistance Crush zones Venting system features chin guard intake, adjustable upper intake, adjustable rear spoiler exhaust and Advanced Channeled EPS for optimal airflow Clear polycarbonate, anti-scratch, anti-fog face shield with Safety Lock Visor System Internal dark smoke sun visor (see multiview) Visors are easily replaceable without tools Customizable inner liner features detachable inner pads and cheek pads pads in different thicknesses are available seperately Liner, neck pad, and cheeck pads are removable and washable Quick-release chin strap Ready for installation of Suomy Communication System installation (available seperately) SCS uses cable or Bluetooth to allow driver to passenger or bike to bike communication along with connection to MP3, GPS or cellular phone DOT and ECE certified