I bought some Tifosi Slips from my LBS for about $50. They have consistant good ventilation but my contacts don't dry up and fall out like they used to with my no frame safety glasses I used to use. The Tifosi Slip set includes a nice case, bag that doubles as a cleaning rag and 3 lenses. There are soft "folders" in the case for each lens. The amber lenses really bring out contrast in your view on cloudy days. I was surprised. I am spoiled by the optics and won't wear any of my $10 sunglasses anymore even if I have no other alternative.

http://www.nashbar.com/profile.cfm?c...eid=&pagename=

www.tifosioptics.com