Distinctive design, features optimum coverage and increased vertical field of vision. Custom painted frame, Articulating Outrigger Positioning System, Dual density compression molded face foam, Self Adjusting Split "V" nose for a comfortable fit., Fog-X anti-fog lens coating, Carbonic-X lens provides exceptional clarity and scratch resistance, Vaporator Lens Technology, Patented Regulator adjustable lens ventilation and Medium Fit