Bought a pair just prior to leaving for a week long vacation.  Hiked four hours the second time I wore them (which I never suggest anyone do).  I liked them so much that I bought three more pair just like them.  I now have a new pair for yard work as well as the ones I wear for long walks.  There is more padding in this earlier version than what I could find in the stores when I went to purchase a second pair.  I was told it was the "upgraded" version of the same shoe.  I have to wonder if both didn't come out at the same time with one meant to have a firmer insole.