Incorporating a single polycarbonate lens design and contemporary styling, the Crews 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 comfortable fits a wide variety of faces. Easy lens removal and replacement makes interchanging lenses simple. Provides 99.9% UV protection.Meets ANSI Z87.1, CSA Z94.3 and CE standards. Five frame colors available. Find related items for your glasses in Accessories and Lens Cleaning Products.