I purchased these glasses to use while recovering from surgery, as I like to read outdoors. So far they have held up very well. Keep in mind, these are not Ray-Ban and these are not bifocal sunglasses. I personally struggle with lined bifocal glasses so these work very nicely. Great look and functional. They do the job. Just what I was looking for. And you cant beat the price...2 pairs under $15.00. I recommend this product.