So far so good.
I bought these because I have broken four pair of Target, Walmart, and other Amazon glasses with plastic frames. These have not disappointed! The flexible metal frames work great, they look nice, and the lenses stay put. The progressive lenses are about as good as the $200 prescription glasses I used to have.  I really have high hopes for these and if I don't break them in six months, I'm going to buy another pair! Definitely try them.
Rating: 5 stars