| High-Impact 2.2mm Polycarbonate: Engineered from 2.2mm thick, ballistic-grade polycarbonate (Model 740-0188) to provide superior impact protection for the ESS CDI frame. Contrast-Enhancing Mirrored Copper: Features a Mirrored Copper tint designed to improve depth perception and visual contrast in variable light, flat light, or overcast conditions. Lateral Exchange System Compatibility: Precision-cut for a secure "Medium Fit" within the CDI frame, allowing for rapid, tool-free lens interchangeability via the integrated side-loading system. | Professional Grade Optics: Provides 100% UVA/UVB protection and distortion-free optical clarity across the entire lens surface for high-performance use. Technical Replacement Kit: Sold as a matched pair of high-performance replacement lenses; please note that the CDI sunglass frame is sold separately. |