2.2mm polycarbonate high-impact replacement lenses for ESS CDI™ sunglasses. ESS CDI™ replacement lenses are available in Clear, Hi-Def Yellow, Mirrored Silver, Rose Copper, and Smoke Gray. These kits includes two CDI™ lenses (right and left) and a protective lens pouch. The CDI™ sunglass is sold separately. The CDI's Lateral Exchange System™ allows quick lens interchange. CDI™ lenses provide 100% UVA/UVB protection and are compliant with US Federal OSHA, ANSI Z87.1+ and U.S. MIL SPEC MIL-PRF-31013. Medium fit.