Hardcore sunglasses for the hardest-core saltwater junkies. These Costa Fathom sunglasses’ co-injected, co-molded frames provide the perfect fit with the best polarized lenses on the planet. Bringing maximum comfort and vision on the water, these Costa men’s sport fishing sunglasses are the perfect tool to any Angler who seeks a life on the water. All Costa lenses have 100% UV blockage for maximum protection and 100% polarization to kill reflected glare. Our 580 technology goes beyond polarization to produce the clearest lenses on the planet. Choose Glass for superior clarity and scratch resistance. Choose Plastic for a lightweight durable option.