Optic Nerve Boneyard Sunglasses, Matte Black, Polarized Smoke with Blue Zaio Lens Polarized Lens Technology eliminates 99.9% of harmful refracted sun glare 100% UV Protection to protect your eyes from harmful UV light Antireflective coating to reduce light reflection from behind Hydrophobic coating that repels water, dust and oil, as well as enhance overall performance and durability Limited Lifetime Warranty