Jackson Safety Nemesis CSA Safety Glasses (20379), CSA Certified, Clear Anti-Fog Lens with Black Frame, 12 Pairs / Case 12 Jackson Safety Nemesis CSA Certified Safety Glasses / Case; Black Frame, Clear Anti-Fog Lenses (ideal for indoor use and humid environments) CSA certified and meets ANSI Z87.1+ standards for personal eye protection Stylish comfort, lasting protection with a sporty, flexible, lightweight design that your employees will be happy to wear Polycarbonate lenses provide 99.9% UVA/ UVB/UVC protection Patented Flex-Dry nose piece designed for comfort with enhanced flexibility and integrated ridges to channel sweat away from the eyes, and help prevent slippage down the nose