I love these sandals.  I have several pair of FitFlops and find them the most comfortable thongs I have ever worn.  I have one fallen arch and can't wear the typical flip flops or thong sandals which generally don't have any support.  Fit Flops have great arch support and can be worn all day with no pain.  My knees, hips and lower back really benefit from wearing these sandals.  This particular style is durable and adjustable.

The inside of the strap is soft so it doesn't rub and the thong is very comfortable between the toes.  As for fit - I have a very wide foot and this sandal fits perfectly.  Which may not be good for people with narrow feet.

The pricing thru Amazon is fantastic as I have paid $90.00 at the local specialty shoe store for the exact same style of sandal.