3M Nuvo Readers 1.5 Diopter Safety Glasses With Gray Plastic Frame, Gray Polycarbonate Anti-Fog Lens And Integral Sideshields 3M Nuvo Readers 1.5 Diopter Safety Glasses With Gray Plastic Frame, Gray Polycarbonate Anti-Fog Lens And Integral Sideshields Nuvo has a fashionable dual-lens look Tough, lightweight, one-piece lens with outstanding protective and comfort features. Meets ANSI Z87.1 Standard