JORESTECH Eyewear &ndash; Safety Protective Glasses Prescription Frame Compatible Case of 12 (Clear) Meets ANSI Z87+ Standards (a more stringent version than the Z87 Standard) Wide frame vented reinforced lateral side shields and Eyeglass compatible  can be used while wearing most prescription frames Polycarbonate hardened high impact lenses with scratch-resistant coating Hi-Flex Frame for reduced user fatigue and improved hold with security cord ready