An anti-fog coating that is applied, among other things, to the surface of specialised spectacle lenses. The Anti-fog coating retains its properties regardless of weather conditions, even when in contact with water. As a result, it contributes to maintaining undisturbed visual acuity, which increases the comfort and safety of the wearer.

Quattroflex is the name for a special type of ruby-coloured lens that reduces blue visible light. This increases the contrast in the snow, allowing a better and faster perception of the surroundings. The Quattroflex lens also has a brightening effect, making the contours and textures of the ski run more visible even in poor weather conditions. In addition, there is a high-quality polarised film in the lens that enhances the Quattroflex effect: it eliminates scattered light and reflections, increasing contrast