Abstract: A sole support constitutes at least a part of a support surface configured to support a sole. The sole support includes a high portion that constitutes a part of the support surface under at least a part of a distal phalange at a higher position than a part of the support surface under a proximal joint of a proximal phalange for each toe so that a proximal joint of the distal phalange is above the proximal joint of the proximal phalange in each toe.