Bought this shoe to traverse some rocky areas during beach combing in the Bahamas this summer and it didn't make it out of the first day. At the end of the first day of light use, the top layer of the insert came off in both shoes. By the end of the second day when I barely wore them but to walk to the beach, the inserts themselves started rolling 'backwards' out of the shoes. After walking for ten minutes, the actual inserts were 'escaping' the rear of the shoe having creeped backward with each step I took - eventually 'flapping' out of the back of the shoe. It was a strange sight, and even a stranger sensation. In order to protect the bottom of my feet, and because I didn't have any other shoes with me, I had to remove the inserts altogether - which was almost like walking on rocks. Anyway, this is a bad shoe and they're not cheap. Avoid them at all costs.