I did not like these shoes. I thought they were overly stiff and as a result chaffed my feat towards the end of the day.  I am not sure what the uppers are made of buy my feet go hot.  My real complaint is that the stiffness of the shoes combined with the material of the uppers resulted in a heavy crease across the toes where the shoe must bend while walking.  This area ended up looking unusually unsightly and the topping material started delaminating from whatever substrate it was attached to. So the shoe was too hot, too stiff, and started falling apart in less than 3 months.  It is disappointing. My last pair Skechers were my favorite pair of shoes.<br /><br />I recommend that you do not buy these shoes online.  If you want them be sure to try them on first.