VISION 8, 5 and 3 lenses are made from the toughest, most optically perfect polycarbonate material. An anti-fog and hard coating is applied to each lens and all lenses offer 100% UVA protection. VISION mirror lenses have a VLT (visible light transmission) of between 25% and 38% depending on the tint and mirror colour chosen. The LTV essentially corresponds to the amount of light that the lens allows into the glasses. Look incredible with exceptional optics and a stylish Vision Mirro lens on the piste or trail.