I own Moszkito brand flip flops and wear them all the time as they provide the extra arch support I desire. I wanted to find a comparable shoe that was less expensive and thought these SOLE shoes would work.
After about 30 minutes of wearing these I had a double blister where the strap crosses my foot.  Arch support is minimal and a mid foot ridge on the sole is uncomfortable.  They feel like nothing more than those exerciser shoes that Kmart had two years ago for $15.00.  I was a little put off by the tags attached to the shoes in the box- little blurbs like "they get more comfortable the more you wear them" yet this wasn't Sole's claim, instead some random magazine was sited for that write up.  If you want to give them a try, sizing seemed to run a little large.  I normally wear a 9 and ordered these in a 9, they fit fine at my heel but there seemed to be alot of shoe extending at the toe area.