I jog a mile a day so I'm not really a heavy duty runner but the shoes I was using were giving me shin splints and heel pain, plus the dr said my arches are starting to fall because I never wear arch support (I'm starting now). These shoes have pretty good arch support, I may still put my own ortho in just because I have slightly high arches but so far no pain when wearing these shoes and they feel amazing, they put a spring in your step. :)