Delivery was awful.  I finally got in touch with the company and they said the Post Office had lost them.  They sent me an extra pair  but I have to say they are not very comfortable.  They do block the sun and the bifocal part works ok but they are not good for driving or watching anything thru the top part.  Of course, they are supposed to be outdoor reading glasses so maybe I expected to much.  Anyway I wasted my money.  They will work til I loose them all.  Even for the price they are just not worth it.