Traditional style safety glasses designed to be worn over prescription glasses Side ventilation ports for better fog control Impact resistant polycarbonate lens blocks 99.9% of UV rays Meets or exceeds all ANSI Z87.1-2003 and CSA Z94.3 requirements Polycarbonate safety glasses protect your eyes from impact, but the glasses deteriorate due to scratches, light, etc., and should be replaced after 2 years.
