I have worn these same shoes for years and years.  My last pair finally wore through the thick sole enough that a piece of gravel got to my foot....that's how sturdy they are and how long the uppers will go....years and years...enough to wear the sole down to almost nothing.  I have plantar fasciitis (or however you spell it) and I am pain free in these shoes.  Yes, they are not the most delicate or attractive, but they sure are great for my feet, legs and back, and well worth the money with how long they last.