Safety prism eyewear is made of polycarbonate lens material. This prism eyewear features a 2.2mm high-impact anti-fog/anti-scratch coated polycarbonate lens. High contour (9 bases), single piece lens with 180-Degree distortion-free viewing and superior optical quality. 99.99-Percent UVA and UVB light absorption. Optimal fit, ultra-lightweight frame.