The SCOTT Split OTG Snow Cross LS Goggle offers the latest "over the glasses" goggle performance and technology. It has the same features as the regular Split OTG but also comes with a light sensitive lens. This special lens engages photo-chromic technology and adapts automatically to sunlight intensity. It will darken when the brightness gets stronger or lighten when the sunlight gets weaker. Like this you have one versatile lens for all weather conditions.