The Tyrant 2.0 features a Light Night Fototec lens for the athlete looking for comfort. It offers dual vented lenses to improve air circulation to prevent fogging in a half frame.Made of Grilamid TR-90 an incredibly light and durable nylon material that resists chemicals and UV damage. Hydrophilic rubber ear and nose pieces for a no-slip fit customizable fit. Light Night Fototec - 75.9 - 27.7% Light Transmission. Light Night has the widest range of light transmission. The clear-to-smoke transition provides clarity comfort and protection from dawn to dusk.