These high-performance sunglasses are super light and durable option for the most demanding of situations. Whether hiking through rough terrain, playing nine holes, or navigating the freeways, these shades are reliable and affordable. the blue blocking lenses helps blocking harmful ultraviolet waves and provides high resolution, crisp, clear vision. Ventilation ducts at the top of the frame are great for good air circulation-ideal for keeping your lenses fog free, and the soft cushion nose pad is integrated into the frame for optimal comfort. Rarely has such a functional, high performance pair of sunglasses been available at such a reasonable price.