PROBLEM -- I've tried to figure out what the hell is wrong with this shoe and my research located several sites that say they designed this shoe to "roll" outwards in the heel. The inner part of the shoe heal is higher (more padded?) than the outside, causing your foot to roll out as if walking on a slight incline. I find this utterly and entirely annoying. There is nothing I can tell at all good that comes from this. So unless you know you need shoes that do this (your foot doctor diagnosed it) skip these shoes. NB tried to solve a problem that doesn't seem to exist and all the website I've checked say this design does nothing for a runner -- except make you wish you were wearing a different pair of shoes.