Sena Pinlock Anti-Fog Insert Lens for Specter HelmetThe Sena Pinlock Anti Fog Insert Lens for the Specter Helmet is a specially designed moisture absorbing insert that helps prevent visor fogging, maintaining clear vision in cold and wet riding conditions. Designed specifically for the Sena Specter Bluetooth helmet, it creates a double glazed effect by forming a thermal barrier between the outside air and the inside of the helmet visor. Features: Genuine Pinlock anti fog technology. Moisture absorbing