Well, first, you should know that native sunglasses are made in USA. Also, as we know that native sunglasses are designed to provide the absolute best in comfort and safety, not to mention incredible versatility. And you can find many different models, such as the Nano2 4-Lens Polarized Sunglasses and the Native Silencer 4-Lens System. By wearing them, they can boast interchangeable lens for any light conditions you find yourself working in. in other words, by wearing them, you will feel comfortable and at the same time, it can shield your eyes. So they can protect your eyes from the strong sunlight and the UV rays. Anyway, it is a kind of comfortable and protective safety sunglasses. Besides, you can buy them at http://workingperson.com/brands/native-sunglasses.html. They can only cost 75 dollars.