Incorporating a single polycarbonate lens design and contemporary styling, the Excalibur® provides an exceptional wide angle of unrestricted vision and side protection. The fully adjustable temples and lightweight nylon frame allow for optimal comfort and fit. The molded-in nose bridge comfortably fits a wide variety of faces. Easy lens removal and replacement makes interchanging lenses simple. The scratch-resistant lens filters out 99.9 percent of UV radiation. Treated with our exclusive Duramass® scratch-resistant coating. Optional anti-fog coating is available. All items shown meet ANSI Z87.1 Safety Standards. Some of the items in this style also meet Canadian Standards Association (CSA Z94.3), European CE (EN166), and Australian (AS/NZS1337) Safety Standards.