Since other people had already said to order a size larger, I did, and they fit fine. I changed the insert to a different one, and they are comfortable. I've had other Merrells, and they were wonderful, but I guess they really don't make them like they used to, because these are just ok. As other people posted, of course they are not waterproof - mesh is never waterproof, but, again, since other people pointed that out, I knew it before I bought them. So they get 3 stars.  I've only worn them a couple of times, so we'll see how they last.