Experience the style and performance of Costa Mainsail sunglasses. These shades are designed with a matte gray crystal frame and blue mirror lenses for an elegant look that exudes sophistication. The polarized lenses provide excellent protection from harmful UV rays, while enhancing color contrast and clarity to help you see more clearly. With their rectangle shape and resilient construction, these shades will have you feeling confident in your everyday style as well as on the water where they shine brightest.