I ankles overpronate and a podiatrist recommended NB rollbar shoes many years ago. Thanks all I wear since then. Usually though, I wear an extra NB arched sole with an extra orthotic piece inserted on the inside as my arches are flat from years of dancing barefoot... and ok, maybe age. The new 856 are awesome. I bought the new style arch insoles (without needing the additional orthotic piece) and my feet are dancing merrily. I do jazzercize 3-5 days a week and I know these shoes are what makes that feasible.