I use these for walking on the treadmill anywhere from 2-3.1 miles 3-4x/week. I've had them for a few months and I notice that my feet would start hurting 5-10 mminutes into it. I'm not flat footed or anything. They just seem like they don't have enough cushion inside. Needless to say, I will be shopping for a new pair of wallking shoes soon!