The Encon Safety Products Guard-Dogs G100 Convertible Eyewear and Goggle Kit come in both clear and gray replaceable lenses for indoor and outdoor use. A FogStopper coating prevents dangerous fogging of lenses. Interchangeable temples to goggle strap for maximum protection from environmental airborne hazards. This eyewear meets ANSI and military ballistic impact specifications, and the lenses offer 99.9 percent UVA and UVB protection to 385Nm.