Polarized Mirrored Gray 2.2mm polycarbonate replacement lenses for the CDI™ sunglass. These polarized lenses reduce glare and eye strain, in addition to providing 100% UVA/UVB protection. CDI™ replacement lenses are also available in Clear, Smoke Gray, Hi-Def Yellow, Mirrored Copper, Mirrored Gray, and Mirrored Silver. The CDI's Lateral Exchange System™ allows quick lens interchange:For intense, blinding sun &reflective surfaces. Is themost effective at cuttingglare, has unbiased influenceon color.