Flying Fisherman Buchanan Polarized Sunglasses AcuTint polarized lens system Hard coated for scratch resistance Lightweight and durable Crystal gunmetal frame with copper lens UVA and UVB protection Acu-Tint lens coloring system adds color contrast without distorting natural colors, allowing you to see more clearly 100% Protection From Harmful UVA and UVB Rays Scratch resistant, lightweight and durable Polarized lenses eliminate glare and reduce eye fatigue Limited One Year Warranty