I've been using these sunglasses since I got them a few days ago and I can't get them off! The always shiny and sunny skies from Costa Rica require you to always have 2 things at hand. A good bottle of fresh water and a good set of sunglasses to prevent your eyes from getting roasted. Whether I'm hanging around the beach or driving my car, the Madson's perform well. The polarized lenses put this on my top list tho. It makes it difficult to feel blinded by the sun when its sets in front of you and even with the screens like cellphones or car screens, it keeps most of the colors clear for reading messages and whatnot. Overall, I can feel the quality of those and after trying many other expensive “fashioned ” shades in such demanding weather conditions, it will be so difficult to stop using these. Can't leave without mentioning how cool is to have black Sabbath-themed sunglasses.