The boots performed as advertised with one exception: the toe box destroyed my middle toes beside my big toe on both feet.  I backpacked in the Cascades for 4 days and by day 2 it became apparent that there was a problem with the toe box. Despite having trimmed all my nails before the hike, it appears that my two toes were slamming against the toe box in both shoes.  Since it happened to both feet/toes - - the only conclusion is that the toe box does not accommodate my feet.  I should have purchased these boots through REI or BackCountry because they would have exchanged the boot - - but Amazon's policy is so limited I am now screwed with boots I can't wear for their intended purpose.  I was wearing smartwool lightweight socks and I regularly took off my boots throughout the day to let my feet cooldown/relax.  I even put them in cold water streams when available.  Basically although I otherwise loved the boot - - since it will cause me to lose both my toenails -- I cannot recommend them under any circumstances.  If the two toes beside your big toe are longer than your big toe - - do not wear these boots.