ReVive Optics HJK2X10-P-M-SL Replacement Lens For Oakley Half Jacket 2.0 XL (Polarized Silver Mirror) One pair of replacement lenses in Polarized Silver Mirror for Oakley Half Jacket 2.0 XL Sunglass cleaning/storage bag included 100 percent Polarized lenses reduces glare, enhance contrast, and provide 100 percent UV protection 18 percent Light Transmission Impact resistant exceeds ANSI Z80.3 and EN 1836:2005 standards