Global Vision Eyewear Men's Outfitter 24 Safety Glasses with Photochromic Color Changing Lenses Nylon frame with polycarbonate lenses Imported Meets ANSI Z87.1 Standards for Safety Eyewear Shatterproof Polycarbonate Lenses with UV400 Filter for Maximum UV Protection and Scratch Resistant Coating Matte Black Nylon Frame with Fabric Covered Soft Airy Foam Fits Over Most Prescription Glasses They meet ANSI Z87.1 safety standards and feature shatterproof UV activated polycarbonate lenses that transform from clear to smoke automatically to match changing light conditions. Comes boxed with Micro-Fiber Pouch for Storage and Safe Cleaning and Includes Strap (Cord 5) Meets ANSI Z87.1 Standards for Safety Eyewear