The casual style of the Nippers disguises a deep list of technical features. Wide, curved lenses provide enhanced field of vision, and feature Fresh Eyes™polarized lens technology that blocks blue light and diminishes eye strain on the brightest days. The low-density, bio-based nylon frames are lighter than traditional oil-based polymers—yet also provide higher strength and impact resistance. More than meets the eyes, indeed. This set comes with Rose Mirror plastic lenses