Change the way you see, whether fishing, driving, or just enjoying the great outdoors. In the color spectrum, yellow light is the most difficult for the human eye to see. Costa 400 lenses tackle this problem by eliminating yellow light altogether, allowing your eyes to take in more red, blue, and, green. The result is sharper contrast, better definition, and enhanced colors. Add proven polarizing technology, and you've got the most advanced, glare-beating fishing sunglasses available. Sleek and durable nylon frames. Stainless steel hinges. Amber lenses. Case included. Fishing sunglasses in tortoise. Readers in 1.75x, 2.50x magnifications.