Polarized Replacement Sunglasses Lenses for Spy Optic Spy Helm (Ken Block) - Black 100% polarized lenses UV protection that filters out 102% of UVA/UVB/UVC & harmful light Permanent hydrophobic coating which repels water, dirt and dust. Impact Resistant High grade injected molded polycarbonate The lens only fit for Spy Optic Spy Helm (Ken Block) frame