Evader 2 Airsoft goggles can be worn by themselves or as an over the glasses goggle ( OTG ) for small to large sized glasses. Interchangeable lenses give you day and night protection behind Guard-Dogs exclusive FogStopper™ coating, Polycarbonate, ANSI Z-87.1 safety rated goggles for work or fun. Even as the largest in Guard-Dogs Over-Rx line, It's low profile fits great with helmets for Motorcyclists, Airsoft and Tactical use.