Costa Fantail Polarized Sunglasses - Always ready to hit the flats or hook a deep-sea behemoth, the Costa Fantail sunglasses are the smaller but no less mighty kin of the Blackfin. The best polarized sunglasses on the water, these men's performance sport fishing sunglasses with mirrored options are polarized, co-molded and are perfect for any Angler. 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.