I don't run, jump or do anything out of the ordinary in these shoes. I only used these shoes to go to and from class or to go out with friends. While using them I seem to have blisters on my heels, at first I blamed my socks. But today I realized it was definitely the shoes that were torn on the tops of my feet and I noticed a noticeable amount of blood on the heel, toes and new white shoes. BUT! Those shoes look awful, I'm not going to lie, Chief. But I'm not a fan of spending money just to stick a possible infection in my leg. It would be nice to get the money back.