The 31-80108 GPT XC Spectacle Frame Laser Safety Glasses by Honeywell (formerly Sperian) are for NdGa:YAG laser wavelengths. It has an XC frame with green color polycarbonate lenses. Glendale's polymer Diffused Viewing Only (DVO) designed eyewear maximizes visibility, with lightweight frame designs while providing unsurpassed attenuation for the entire range of laser wavelengths. 32 % VLT (visible light transmission). The stylish XC (extra comfort and extra coverage) frame provides the best wrap around coverage for a spectacle and most comfort for the wearer. The lenses are coated for anti-fogging. Meets ANSI Z136.1 and EN207. CE Certified.