Costa Del Mar Wingman 580G Polarized SunglassesCosta Del Mar Wingman Sunglasses are perfect for fishing or laying on the beach! While most Costa's are made of nylon, the Wingman are constructed of a corrosion resistant metal called Monel. The Costa Wingman feature top of the line polarized 580G glass lenses, which are extremely clear and block 100% UV rays! These fantastic lenses also block some blue light to eliminate haze. They also block yellow light for superior colors. These lenses are