Glass with category S3 is designed for riding in strong and harsh sunlight. It will work well for people who are hypersensitive to light and on high-altitude slopes without shaded areas. It absorbs between 82 and 92% of light and has a darkened surface.

Temperature fluctuations can cause unwanted fogging on the inside of the lens. To prevent this effect from occurring, the lens is treated with a special coating that prevents fogging. This increases safety and comfort when on the slopes.