Optic Nerve Redcloud Sunglasses TR90 Grilamid Nylon Frame Resin Polarized Lens Technology eliminates 99.9-Percent of harmful refracted sun glare 100-Percent 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