2.4mm thickness Compliant with U.S. MIL SPEC MIL-PRF-31013 (Clause 3.5.1.1), ANSI Z87.1-2015, CE EN 166, and U.S. Federal OSHA 100% UVA/UVB protection These extra-tough replacement lenses for the CDI MAX sunglass are some of the thickest of any sunglass in the world. Built from 2.4mm high-impact polycarbonate, you&';ll be more covered than ever before.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }