I've only been wearing them for about an hour but they are really very comfortable probably the best shoe I've ever worn. They have this weird arch support that works really well and has enough room for a normal foot (unlike most running shoes I've tried). My back was killing me for weeks and after walking my dog in it at the park it didn't get any better (which probably indicates my other shoes are trash lol). I highly recommend them and will update this review if the shoes somehow go wrong.