After about 3 weeks of wear, the insole came off, but my preschooler kept wearing them.  After about 4 weeks of wear, there was no traction left on the rubber sole.  After about 6 weeks, the rubber sole was worn thin.  After 7 weeks, the upper separated from the sole which I've glued together in hopes they will last another day before a different, hopefully more durable pair of sandals arrives.