I've probably gone through 10-15 pairs of these over the years.  I do quite a bit of wade fishing, and I'm very hard on sandals.  I've tried sandals from every manufacturer out there, and Reef (fka Reef Brazil) makes the best sandals.  Others will fall apart; Reefs do not.  Almost every pair I've owned lasted until the soles wore through (and they have thick soles, at least at first).

An essential part of any Floridian's outfit.