I am quite disappointed with these sandals.  I wear 13, and gee, these are definitely smaller than any 13 shoes I bought, if I knew that sizes are not right in advance, I would have ordered 14 or so.  Also, the material seems "plasticy" and too synthetic, something I was not expecting given the picture.  I am sure I'll ever be able to wear these.  However I must say they seem durable and if were of the right size, could have probably last for a long time.