Polarized Sports Sunglasses with 5 Interchangeable Universal, Black+blue

(1): In golf, for example, tinted lenses can enhance contrast between light and dark patterns of the grass on greens, enabling you to "read" greens better for more accurate putting. 4): For very bright conditions, such as hiking, skiing or snowshoeing at high altitudes, consider adding a mirror coating to the front surface of your sports sunglass lenses.

eBay