Have been wearing 1990 version of M Frame with the smaller Hybrid-S lens (mostly Ruby Red Iridium). Use them for biking, hiking, pool and driving in Phx, AZ - so LOTS of sun! New M-frames/lens size are too big. I think I want a couple pairs - one with the separate lens and one with single lens like my current M frames. So I'm looking at the Flak 2.0, Half Jacket 2.0, Radar w/Path (and/or Edge) lens, and Radar EV. I know that some come in a low bridge version that might work better for me and depending on availability would be Prism Ruby lens if available - or Prism Road - but I'm getting so confused at the possible variations/combinations that are available. I've been on Oakley's sight but can't tell for instance if I go with Half Jacket 2.0 Low Bridge is I can get the XLJ lens that have more of a concave look and more coverage to the side. It also doesn't help that most combinations of what I'm looking for doesn't seem to be available at sunglass or eye doctor shops to try on. I know there are also some XS (kids) versions of these but I think they might be a bit too small and not have as many lens options. My biggest criteria other than the look of the styles able if that they fit snug along the sides. Any feedback/suggestions greatly appreciated.