3M™ OX™ 2000 Safety Glasses with Black Frame has clear polycarbonate DX™ anti-fog lens which is designed to fit over most prescription glasses. Seamless lens with built-in side shields secures an uninterrupted sight range with over-the-glass coverage. It has flexible, polycarbonate construction and delivers high impact protection and offers comfort, custom fit. Polycarbonate lens absorbs 99.9% UV rays and meets ANSI Z87.1-2003 standards.