Let's be honest.  This shoes is made of man-made materials.  That being said, we need to understand that the shoes would not feel or breath like a pair made from leather  ---  but the incredible lack of "breathability" is insane.  It's like your feet are trapped in Saran Wrap.  The uppers are going to show their plastic base sooner than later with visible creases being apparent after the first day of wear.  I can't believe that these are actually "M" width, I feel like my foot is flopping around no matter how tight I tie the laces.