Meets or exceeds the military's stringent MIL-DTL-43511D (goggles) and MIL-PRF-31013 (spectacles) ballistic standards Wiley X ANSI approved frames can accommodate prescription safety lenses up to +6.00/-6.00 Total Power Meets and exceeds ANSI Z87.1-2003 high velocity impact safety and optical standards Matte black frames Light Rust lenses filter out blue light waves, the chief component of glare and haze, enhance contrast in medium to low-light conditions Light transmission: 53%