Polarized Replacement Sunglasses Lenses for Spy Optics LEO (Black) Provides 100% UV protection. Impact Resistance-Passed Drop Ball Test (U.S. CFR Title 21 (FDA) Part 801.410. Permanent hydrophobic coating which repels water, dirt and dust. Impact Resistant High grade injected molded polycarbonate The lens only fit for Spy Optics LEO frame