I barely fit my brain case into a 7 3/4", so I don't know if that compares to yours, but my daily wearers are Native's. They're really nice shades I got from a large sporting good chain here in SoCal (~$120). I can wear them all day. The problem is the frame sits a bit low on my eyes and I can't see over them when I'm on my TT rig or in the drops on my roadie. I now race with Performance's Cat-1 (the ones with the auto-chromatic lens - about $30). They are a little tight but they are fine for 2-3 hour rides and the tightness helps keep them on.