I really wanted to give this 5 stars for the comfort in the sole of the foot but like other reviews they tore the back of my heel i mean before it started chafing , my feet felt really comfortable and the only real issue was the lace up design!Who the heck designed this monster?But I was happy with how comfortable it is so I didn't pay attention.I can feel the friction of days and it was just unbearable to return them to the buyer