This is what you get after 16 years of R&D: stylish, functional eyewear that can endure a world of abuse and won’t allow anything to get in the way of clear vision, fit or comfort. Built from high quality Grilamid Signature patented Scoop Venting System 8-Base ARC (Accurate Radius Curvature) Impact Resistant Polycarbonate Lenses Hytrel Rubber Nose Pads and Temple Tips 100% UV protection ANSI Z87.1 certified lens retention & impact resistance Frame measures: 64-18-125 Patent #'s: 5,898,468; 5,801,805; 6,050,684; 5,610,668 Replacement lenses available for all light conditions Available in RX