Revant Replacement Lenses for Oakley Flak Jacket XLJ 2 Pair Combo Pack K003 2 combo pack - Dark Brown & Stealth Black lenses 100% polarized Polarium&reg; lenses reduce glare, enhance contrast, and provide 100% UV protection Revant Repel nano-coating - repels water and dust Stealth Black - 8% light transmission, neutral view tint | Dark Brown - 26% light transmission, brown view tint Impact resistant (exceeds ANSI Z80.3 and EN 1836:2005 standards)