My husband has been wearing reefs for years.  They are incredibly comfortable and long lasting.  He will wear them nearly everywhere except work from March through November and they will last two to three years per pair.  The Slap style is his style of choice because they do not have a bubble in the heel that will eventually flatten, or some metal piece that could scrub the ground.  His newest pair is no exception.  Reefs are still the high quality flip flop they have always been.  We both buy up a size in these shoes, because we like them a little roomy and like some space at the heel.