Through BINI OPTICS Polarized High Performance Plastic lenses , all natural colors of an object are retained and represented; Polarized High Performance Plastic lenses offer an option for you, Filtering Out Harsh Yellow,enjoy the natural colors as good as they are and a unique, enhanced contrast of red, blue and green colors
Non-varnish nylon frame: The traditional nylon frame is colored by spraying paint/varnish and essential oil on the outer layer to complete the coloring and polishing; BNUS uses plant pigments (environmentally friendly biological dyes), which are cured at high temperatures when nylon materials are molded, without any harmful substances, chemical residues, and better oxidation resistance; You don’t even have to worry about pet bites or accidental eating, of course, you may lose a pair of glasses