Vapor Shield "military grade" anti-fog is the world's first true anti-fog technology. Polarized lens technology for reduced glare. Flexible and durable frame. Lenses are triple-dipped in anti-scratch coating. ANSI/ISEA Z87.1+2015 & MCEPS GL-PD 10-12 compliant. Lenses block 99.9% of UVA, UVB, and UVC rays