Love these boots! They were a little stiff at first but after a full day of wear they fit great! This is my first pair of zip boots and it is a very handy feature for securing the fit and eases the effort of removing the boot. I can't think of of any cons... its a good investment.

One note: Make sure you purchase from a 5.11 authorized dealer ... I had a problem with a different 5.11 product and they informed me they do not honor warranties for items that are purchased through Amazon merchants who are not authorized dealers. The dealer I bought these boots from was great!