Not being a fan of having anything between my toes, I ordered these with a little trepidation.  I thought with the straps across the foot and one along the outer side of the big toe, that there wouldn't be as much friction with the thong part.  This is not a typical flip flop shoe.  The support is great and the cushioning of the foot makes them very comfortable, feel that I could wear them for a great length of time and do a lot of walking in them, just haven't had a chance to yet because of a shoe-eating dog and the need to order another pair.

The second pair arrived a few days ago and the first thing that I noticed was that these felt looser, particularly the left shoe.  Fortunately, the dog ate the right shoe from the previous pair so I just switched the left shoes and they feel more like a matched pair as far as fit.  That said, these shoes are not designed for people with narrow feet.  The first couple of times I wore the looser second pair, the left shoe slipped off my foot a few times, one of them while going down some stairs - thank goodness for handrails.  This occurred while walking as well.  If this line of shoes came in narrow sizes (similar to Birkenstocks) they would be perfect and I'd have several pairs.  I will be curious to see how the Wobbleboard sole holds up to months of wear (can't wear them year-round in snowy climate).  They would get 5 stars if they had narrow sizes.