HJC IS-MAXBT Bluetooth Modular Motorcycle Helmet (Anthracite, Large) Advanced Polycarbonate Composite Shell - Lightweight, superior fit and comfort using advanced CAD technology Impact absorbing, multiple density EPS liner One-Touch Patent Pending Integrated SunShield - Smoke-tinted SunShield deploys quickly and easily ACS Advanced Channeling Ventilation System - Full front to back airflow flushes heat and humidity up and out SilverCool Removable and Washable Interior - Liner and cheek pads are removable and washable