MCR Safety IA120AF Inertia Polycarbonate Safety Glasses with Silver Frame and Clear Anti Fog Lens Dielectric, lightweight Inertia safety glasses with polycarbonate frame Features a single, flexible lens that blocks 99.9 percent of ultraviolet rays Treated with exclusive Duramass scratch resistant AF4 anti-fog coating Lightweight polycarbonate frame and adjustable, soft thermoplastic rubber nose pad Available in silver frame and clear anti fog lens