The ESS FirePro-1977 goggle series features a low-profile design that prevents helmet interference and increases peripheral vision. The patented Speed-Clip system facilitates quick strap adjustment, even with gloves on. Advanced ClearZone FlowCoat lenses provide an optimal combination of anti-scratch coatings on the outside of the lens and anti-fog coatings on the inside. All goggle components are heat and flame resistant, including the durable OpFoamTM face padding. The FirePro-1977 FS includes a wrap-around strap that secures to any helmet with Velcro tabs. The FirePro-1977 is certified to meet the NFPA 1977 wildland fire equipment performance requirements, including the 350F for 5-minute oven test. They are also U.S. Federal OSHA compliant, exceed the requirements of ANSI Z87.1-2010, and are considered Primary Eye Protection by NFPA 1500.