I wear polarized Oakley Flak Jacket XLJ's, every single day. Hands down the best sunglasses I have ever owned. I used to buy the cheap $20 polarized sunglasses, and these blow them out of the water. Eye fatigue is non-existent, and they are incredibly comfortable for all day wear in any activity I do. I used to average 5 pairs of the cheap ones per year. They either broke, or got scratched up. These are now 3 years old, and are still like new. So, as of right now, I am money ahead. My wife has had her regular Flak Jackets for just as long, and hers are like new as well. I did have to replace the ear socks for her, but that was still cheaper than a cheap pair of sunglasses. I'll never go back.