Introducing Tailfin - a modernized classic Costa design built for all waterman who require a clear view of their surroundings. Our Bio-Resin frame boasts refined and chiseled edges, complemented by features that help you stay comfortable and sweat-free, with your destination clearly in-sight. Offering two size options, both those with bigger and smaller heads can embark on their watery adventures fully equipped. No matter where you’re going, we built the Tailfin to help you get there — and maximize every moment spent on the water. Advantages: Premium Polarized 580 Lenses: - Filtering reflective glare is essential for anyone on the water or outdoors. We sell only polarized sunglasses. 100% UV Protection: - Your Costas absorb 100% of UV light, providing you the best in light management and protection. Scratch Resistant and Durable: - The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning. Optimal usage: - Boating and fishing in deep water - Open reflective water - Harsh sun Costa 580® lenses: - Costa 580® lenses were designed by in-house light spectrum experts to enhance colors because standard sunglass lenses fell short. - The lens´ multipatented technology Manages light by: - Absorbing Harmful High-Energy Blue Light (HEV) 580® lightwave glass: - C-Wall® Molecular Bond - Glass Layer - Encapuslated Mirror - Polarized Film - Glass Layer - C-Wall® Molecular Bond Superior clarity & Scratch-resistance: - Glass Provides The Best Clarity In Material - Encapsulated Mirrors (Between Layers Of Glass) Are Scratch-Proof - 20% Thinner And 22% Lighter Than Average Polarized Glass Lightweight, Impact-Resistant: - Polycarbonate & are your lightest and most durable lens material options - C-WALL® is a molecular bond which is scratch-resistant Specifications: - Lens material: Polarized Polycarbonate (580P) - Frame fit: Regular - Lens curve: Base 8 Decentered In the box: - Tailfin - Costa Case - Cleaning Cloth