Revant Replacement Lenses for Oakley Twitch 2 Pair Combo Pack K002 Mirrored Combo Pack - Ice Blue & Fire Red MirrorShield lenses 100% polarized Polarium&reg; lenses reduce glare, enhance contrast, and provide 100% UV protection Revant Repel nano-coating - repels water and dust Ice Blue - 18% light transmission, warm rose view tint | Fire Red - 18% light transmission, cool blue view tint Impact resistant (exceeds ANSI Z80.3 and EN 1836:2005 standards)