I wear these sneakers in the gym, on the treadmill, in grass, and on pavement. I generally wear these without socks. I have a size ten and they are very snug, initially could not wear socks with them (and I am truly a size 9.5). I have a wide foot although I don't generally need wide shoes. I think using these shoes to run has made my legs and feet stronger. They give me incentive. They look as good as they feel and I sometimes don't want to take them off after the gym. I wash them occasionally with hand soap. I have had them several months now but I don't run very long distances, less than 3 miles at a time. They are still in good shape and I don't need a new pair yet although I want one!