Okay, you are Asian and you have trouble finding sunglasses that do not slide down your face. I have good news. Your long search is over, my friend. This model from Oakley has your name on it.This is a great pair of sunglasses. The Oakley lenses are almost invisible. The clarity is astonishing. And that elusive Asian fit is perfect. So why not 5 stars? Well, there is the problem of price. Oakley and the other famous sunglass makers are all overpricing their products. The reason is explained in an excellent documentary on Youtube called "why are glasses so expensive." I will not give you a link here, but you can search for it. It is easy to find.I picked the "positive iridium lens" because it gives the right balance of shade and light transmission. You can use this pair of sunglasses indoors. It lets in a lot of light but still blocks all of the harmful UV rays, according to Oakley. Obviously, each lens has its particular use. The positive iridium is a good all-around lens. Fine for a sunny day but can be used indoors. You might want to pick mirrored lenses if you are a Lifeguard. Assess your needs carefully and then read Oakley's description of each lens type to find the right one.This model is gorgeous. I loved the color and it is sporty and sexy. Like I said, the quality of the lens is beyond reproach. Now, if they can just bring down price down to a reasonable number . . .Highly recommended, if it is within your price range. If the price is too high for you, then please check out some of the custom sunglass makers on the web. I had a pair of sunglasses made to my specification, with purple gradient lenses, that is almost as good as this Oakley. The frame is not as good a quality but the lenses are claimed to be 100% UV blocking. For a fraction of the price. The fit was very good. If you are Asian though, your choice is really Oakley. Nobody makes sunglass frames that fit Asian males as well as Oakley. That is what many Asian males are telling me.I use these Oakley sunglasses when relaxing and sunning at the swimming pool. It works great for that. The style is youthful and sexy. The lens clarity is so good that I sometimes forget that I am wearing sunglasses. Even when I go indoors. These are truly great sunglasses from Oakley. This is my fourth pair of Oakleys. My first was a pair of black frame Frogskins in 1993. This is the best model yet.