Sperian ANSI Z87 Astrospec OTG Anti-fog safety glasses in clear color with black frame have high performance polycarbonate lens for longer durability.Sperian ANSI Z87 Astrospec OTG Anti-fog safety glasses in clear color with black frame feature hard coated scratch resistant for longer life. Glasses offer easy and economical lens replacement for convenience. 1 Each. Same features as the Uvex Astrospec 3000 with attractive over-the-glass styling. An economical alternative to expensive prescription eyewear. Easy and economical lens replacement system. Meets ANSI Z87+ (high impact) and certified to the requirements of CSA Z94.3 standards. Lifetime frame guarantee. Sold as 1 Each.