Polarized sunglasses , many advantages and helps keep your eyes from hurting, headache, fatigue and so on. I have many pairs and really like the oakley brand myself. Have another pair of Boll'e that I really like. One word of advice croakies. I have lost many a good pair of shades when they have slipped off my hat wading. In my boat I tend not to use them but I should. Would love to hear every ones comments and thoughts. What brand do you like and so on. Tight lines all!