Unleash your inner powers with Matrix. This model is perfect for cycling, cross country skiing and other multi sports. A wide, cylindrical field of view and smart ventilation gives you the best possible vision. Matrix Nano Optics Photochromic is equipped with a photochromic lens that automatically adjusts the darkness of the lens to the strength of the sunlight (UV light). The lens ranges between filter categories of 1-3, depending on the weather conditions. The lens has minimal distortion and integrated anti-fog properties. Plenty of adjustment possibilities gives you world class comfort. Matrix Nano Optics Photochromic is a comfortable pair of glasses that keeps you performing at your best, even when the weather takes a turn for the worse!