COSTA DEL MAR Anaa POLARIZED Sunglasses Retro Tortoise/Cream 。Brand new Costa Del Mar Anaa Women\'s Polarized Sunglasses. Fast and Free Shipping in U.S! Color: Retro Tortoise, Crem, Mint, Gray * Comes in box with cleaning cloth. 100% UV PROTECTION: All Costa Del Mar Eyewear lenses block potentially harmful high-energy visible blue light rays and protect against 100% of Ultraviolet rays (up to 400nm). COSTA 580P POLYCARBONATE LENSES: Costa’s patented 580p polycarbonate lenses are lightweight and impact-resistant. 580 lenses go further then normal polarized lenses by blocking the perfect amount of harsh yellow light and potentially harmful blue light while enhancing beneficial reds, blues and greens. CO-INJECTED NYLON FRAMES: Costa\'s co-injected nylon frames are tough and durable, manufactured using the environmentally friendly bio-resin process. TR-90 nylon is a premier material for sports and performance frames as it is resistant to heat and cold.