I wear these shoes at the wellness center walking track and to say the least they are somewhat embarrassing to wear as the right one has a very loud escaping air sound as I step from heel to toe. This started after about fifty miles on them and I now have over 300 mile on them. they were not purchased from Amazon but JC Penny, not that that should make a difference. other than that they are a very comfortable shoe and appear to have another 300 miles left on them although it may be an embarrassing 300 more miles. they were purchased 9/11/2017.