My 15yo boy scout needed these for 7 day camp up at a lake where water sports and Kayaking merit badges would be worked on.  While other boys were shifting and slipping in flip flops, or in bare feet wincing as they walked across jagged terrain, my son was sure-footed and protected in these.  Before camp he complained that he'd look dumb wearing them.  When he came home from camp, he thanked me over and over again  for getting them for him.  He used them every day.  The outsides are still entact.  However the inner sole is not adhered adequately.  Manufacturer uses a few dabs of stretchy rubber cement.  The soles wrinkle, and twist within the shoe.  He had to keep adjusting those.  And THAT was very annoying.  After they dry out I'm going to re-attach the soles with shoe-goo, or another industrial strength epoxy, and hope they can get more mileage out of them at future scout camps.