This Costa del mar tuna alley 9009 sunglasses pair is high-tech and high-performance, with an ultimate lens for men. These patent-packed lenses raise the red, blue and green areas, eliminating much of the yellow light, leading to purer vision, deeper colors and sharper contrast. Sturdy material (acetate) rectangular shape-frame with regular hinges for extreme comfort and lightweight feeling. The lens is available in grey with a white frame.