I found that the bridge was too wide, and left a gap on the nose-side of my lenses that was not covered.  They were wide enough, but not tall enough to be effective.  And they seemed to sit funny - like they were too far away from my lenses.  I ended up returning them.  I wish they had more size choices.  I think it's very hard to find a good fit on the internet - you really need to try them on and see how they fit on your face and glasses.