I have a very old pair of Diadora's that I picked up for $20 (when I first started cycling 8 years ago) and a pair of Shimano's I picked up 5 years ago on sale. I'm not really into shoes I guess. They are both well used (lots of outdoor cycling and indoor spin classes), but haven't noticed any problems. I probably should look for a new pair - I've considered the Keen sandles, but live in WA and not sure they would get good use.