ESS FirePro-1971™ structural firefighting goggles are the most advanced on the market. This goggle series is compliant with NFPA 1971-2013 Edition, including the 5-minute, 500°F oven test. It is also U.S. Federal OSHA compliant, exceeds the requirements of ANSI Z87.1-2010, and is considered Primary Eye Protection by NFPA 1500. All components of ESS FirePro-1971™ goggles are heat and flame resistant. The FirePro-1971 EX-2™ model features a two-piece strap with Snap-on/Snap-off mounting brackets that easily secure to brimmed helmets, no drilling required. KEY FEATURES: . . - All goggle components are heat & flame resistant . . - Full-perimeter ventilation & filtration system minimizes lens fogging & filters airborne particles . . - Patented Speedclip™ system allows for rapid strap adjustment & optimal helmet compatibility rapid strap tension adjustment . . - Low-profile frame with wide wrap minimizes helmet interference & maximizes peripheral vision . . - Advanced ClearZone™ FlowCoat lens treatments eliminate fog inside & prevent scratches outside . . - ESSOPTICS™ deliver distortion-free optical precision throughout the entire field of view . . - 2.8mm high-impact 100% UVA/UVB polycarbonate lenses . . PROTECTION STANDARDS: . . The FirePro-1971™ Goggle is Compliant With NFPA 1971-2013 Edition, ANSI Z87.1-2010, U.S. Federal OSHA, CE . . KIT INCLUDES: . . Black FirePro-1971™ Goggle Frame with Clear lens . . Snap-on/Snap-off Strap System