These sunglasses are great.  I tried them on in a store first and loved them, but they were about $250, and then I found the same ones here on Amazon for like $120 or so, and bought them right away.  They fold up, which is cool because I can put them in their case in my purse, and not worry about them getting scratched.  I don't know if the many screws will start to loosen with more wear, but we'll see.  You can't tell they're fold up glasses at all though, the lines aren't visible.