Photochromic glasses with light transmission from 82% to 17% cat.0-3 Classic PH glasses and 1-3 PH glasses with MLC treatment.Constructed with hidden frame and modern flat Toric glassMulti-layer MLC mirror coating on the glass for a unique lookFrame made of high quality and durable GrilamidRubberized and flexible feet for a comfortable fit on the headAdjustable rubberized beamGlass material: PC polycarbonateColor: glossy black, matte black/gold