ESS Profile Series Replacement Lens Lens Color:Hi-Def Yellow Built to meet the NFPA

Built to meet the NFPA 1971-2000 compliance requirements for accessories

so you can be sure you're getting a top-notch product

Amber H2X anti-fog lenses

CR-39 POLARIZED lens for the best in optical clarity

ESS Profile Series Replacement Lens Lens Color:Hi-Def Yellow Built to meet the NFPAESS Profile lenses are 2. 8mm of thick polycarbonate tough enough to stop a shotgun blast and pass the rigorous US Military . 22 caliber ballistic impact test MIL V 43511C. Independent test labs show that ESS lenses have V50 impact ratings of up to 727 fps. Lens Colors: Clear General purpose tint for maximum visibility. Smoke Gray Provides protection from glare and high levels of visible light and ultraviolet radiation without distorting color