4X4 Polarized SunglassesBlock the distracting light and spot more fish with 4X4 frames. These frames are made for performance to avoid unwanted sunrays coming from the sides or above. 4X4 frames are available in Polarflite technology with both yellow and brown lens. The lens color determines how much light will pass through a lens. To keep vision optimal, you need less light in sunny conditions and more in cloudy weather. Read more about the lens technologies. How to choose