First I want you to know these tennis shoes were as light as a feather and had a great arch for someone looking for that. Second when I first put them on they felt great. Then I tried walking in them. They kept falling off the heel.  So, I ,laced them up to the very last spot near ankle and tried them again. They were great at first then I gradually realized a pinching around the ankle area. If I loosened them then the back would start slipping again. It's really a shame because I do have flat feet and these had a great arch for that.  I'm not sure if I needed a smaller or larger size. Like I said too bad because you could really tell they were quality shoes and so lightweight. Oh well.  I'll keep trying.