Steve can’t stress enough how important proper arch support is for cycling performance. Arch support is where foot correction starts. He recommends the eSoles eFit SUPPORTIVE model as one of the two best ready to use options available. The eSoles have a modular arch insert system that allows the rider to choose the individually ideal arch support height.
A comparison of available arch supports can be found here.
Currently unavailable, please consider the G8 arch supports.