Cartier Men CT0220S-006 Black Frame PHOTOCROMATIC Blue Light Filtering Lenses Gold-tone metal, black acetate Photochromic dark-blue lenses Come with a case Made in Italy Frame Width: 15cm / 5.9in Frame Height: 4.5cm / 1.8in BLUE LIGHT REDUCTION COATING INDOORS - At clear state, it guarantees additional Blue Light reduction for a total absorption from 34% to 45%. OUTDOORS - It boosts the visible light reduction powered by the photochromic technology reaching at least 70%. A series of Cartier emblematic men’s and unisex full-rim and rimless constructions in titanium, acetate and metal, features smart lenses that optimize visual comfort by minimizing the impact of high-energy light from digital screens. In addition, the lenses protect eyes from direct sunlight by darkening from transparent blue to deep blue when worn outside.