Jackson Safety OTG Safety Glasses (20747), Fits Over Readers, Smoke Anti-Fog Lenses, Brown Frame, 12 Pairs 12 Pairs of Jackson Safety OTG "Over the Glasses" Safety Glasses, designed to fit over prescription eyewear (Base curve 5) Brown Frames with Smoke Lenses (ideal for outdoor use or in bright environments), with anti-fog coating See-through side shields provide side impact protection without blocking peripheral vision Features an hard coating to prevent lens damage Meets ANSI Z87.1+ standards for high impact and polycarbonate lenses provide 99.9% UVA / UVB / UVC protection