Costa Sunglasses. Color Coral tortoise w/copper silver mirror lens. The Costa Salina is the perfect pair of shades for your athleisure activities. They feature a timeless, rounded lens design that will keep you stylish throughout your day. When you slip on these frames, you’ll immediately notice the benefits of the polarized 580® lenses, which cut haze for greater clarity. In addition, the lens technology will protect your eyes from harmful high-energy blue light known to cause macular degeneration, cataracts, and other eye diseases. You’ll also enjoy the Salina’s eco-friendly bio-resin frame material, which provides a lightweight feel. And if you decide to take on an athletic endeavor, the Hydrolite® on the temple tips and nosepads will provide strong grip.