I change my review because after two weeks of wearing this boot the pain has only increased. it normally takes about 2-4 days for me to break in a boot but these I think were made in hell. The heel of the boot is made out of a really stiff leather and when you break in one spot a new rough spot appears. Its a shame too because the concept is awesome, I love the way your feet grip the ground through the soles of the boots. Bottom line, unless you enjoy large ulcer like blisters and a bruised achilles tendon stay away from this boot.