I know these shoes are made of non-leather materials and usually would not even have tried them because of that.  But, once on, they are the most moldable, soft, well fitting and supportive sandals I have.  I have a complaint about the black rubber sole and stacked heel - the rubber is too soft and the back of the heel mars very easily.  Another complaint is that they are so hard to find!  I have several pairs and will keep looking...