I have the Bolle Parole model and think they are great, they don't keep sliding down. They also have an insert that I had my regular prescription put in so that I could read my bike computer. They are not polarized because the computer cover is and with 2 polarized lenses you see all fuzzy.

I also have Maui Jims that I love but they don't have the inserts in them so I can't read.

Kate