Revant Replacement Lenses for Oakley Holbrook 2 Pair Combo Pack K003 polycarbonate lens mirrored 2 combo pack - Dark Brown & Stealth Black lenses 100% UV-Schutz UVA, UVB, & UVC Impact resistant (exceeds ANSI Z80.3 and EN 1836:2005 standards) Stealth Black - 8% light transmission, neutral view tint | Dark Brown - 26% light transmission, brown view tint 365-day manufacturing warranty and 60-day money-back guarantee