I received them in mid-May and they have already worn out in less than 3 months. They probably have a few hundred miles on them to be honest, but other shoes I've been through still work. They feel great, breathe well and I can walk 10-12 miles with no pain. But on the outsole there are patches of glue that have been coming loose for weeks and the rest is very soft foam rubber that has just become smooth. For the price and convenience, I'm not at all mad that I have to throw them out so quickly, but if you're active enough don't expect them to last long.