Yellow/green-based, category-4 mineral lenses with anti-glare and silver bi-shaded coatings.The yellow/green base increases the perception of relief and depth of vision. The bi-shaded coating suppresses dazzle and reflection. It eliminates intrusive rays and improves the transmission of light.
Grey-based, category-3 mineral lenses with anti-glare coating. The grey base respects colors to perfection. It decreases luminosity.
A pure-grey base that reduces the intensity of light without altering the nature of colors. Category 3, its inner side features an anti-glare coating that increases visual comfort. A blue-silver two-tone-colored bi-shaded mirror coating: the bluish upper part reflects the rays of the sun at its zenith while the grey lower part reflects the rays coming from the ground.