Bison Life's Keystone Series Safety Glasses are independently tested and certified by Underwriters Laboratories. Our Safety Glasses exceed ANSI Z87.1 standards and feature a clear, anti-scratch coating. The snug, comfortable and tight fit helps minimize slippage and provides full brow protection. Designed specifically for industrial, commercial, sports, and medical usage, these glasses are remarkably lightweight as you barely notice them and can comfortably wear them for long durations. The soft, wrap-around lens style frame gives maximum comfort to eyes, giving a crystal clear vision all the time. Perfect for both men and women, these glasses offer you a high level of direct and peripheral eye protection from wood, metal, liquid, and other.