The sunglasses can protect your eyes from the uv or other damaging sun lights. You could go to the online stores to buy the uv 400 sunglasses because the price there is suitable and styles choices are many. I suggest two places of amazon and walmart which own the high reputation of the good quality in products.
UV 400 sunglasses can be everywhere in many eyeglasses shop. You can even order UV 400 sunglasses online. But in some shops, they are not signs with UV 400 but signed with "UV prevention". "UV protection" or "99% UV protection" etc. And you can also find some Good uv sunglasses at low prices online. I have bought a pair at Firmoo.com with less amount of money. And it is good to shield my eyes in sun.
It's true that UV400 are protective to shield eyes in sun. So when you buy sunglasses, you must make sure that your glasses offer UV400 protection. These types sunglasses are stocked both online shops and stores. So you can easily to get one. Here I recommend one hot site which offer great UV400 sunglasses. That's amazon. The Uv 400 on this site are at a deep discount and good after sale you'll enjoy if you buy a pair. By the way, you also can get much news about UV400 on lifetips.
Well, it is true that UV 400 sunglasses are able to protect your eyes from some harmful lights ,such as the famous ultraviolet rays, which is devastating to your eyes sometimes. As a matter of fact,that kind of sunglasses are offered at most opticals stores, or you can just visit some profession optical centers where you can find loads and loads of eyewear. Walmart vision center is a good option for you.