comfort and performance of three-point fit that holds lenses in precise optical alignment glare reduction and tuned light transmission of iridium lens coating UV protection of plutonite lens that filters out 100 percent of UVA/UVB/UVC and harmful blue light up to 400nm optimized peripheral vision of 6-base lens curvature and maximum clarity at all angles of vision with patented xyz optics optical precision and impact resistance meet or exceed z80.3 optical and basic impact standards