Just ordered my second pair of these.  The first lasted for about two years before the zipper's pull-tab broke.<br />I bought these for motorcycle riding, which I do about 200 days a year.  I prefer these over traditional harness boots because they are comfortable enough to walk around in all day, so I don't need to pack an extra pair of shoes.<br /><br />There are some comments about the shoes being squeaky on tile floors, and I too have experienced this with my first pair and with this pair.  However, on the first pair, the squeakiness wore off after a month or so of regular use.<br /><br />I would have given it 5 stars if the zipper lasted as long as the tread did (I probably had another year on the tread).