I walk a lot.  I go through about three pairs of shoes a year, almost always by wearing the tread down to nothing.  This was the rare shoe to fall apart with most of the tread remaining.  I don't think I got 100 miles out of them.<br /><br />The Gore-Tex liner was not well attached to the inside of the shoes.  It almost immediately came loose around the toe area whereupon it flexed and rubbed on every step until it tore open.  Water could then get in but not out.<br /><br />The adhesive attaching the sole to the upper developed inch long cracks along the edges.<br /><br />The leather (?) ribs lifted up away from the mesh backing, where they'd then catch on brush or rocks and tear.<br /><br />These aren't cheap shoes.  I wouldn't buy another pair if they were free.