Sole product: Rubber "3 times ago I assumed I used to be intending to want foot surgical procedure. I Hardly ever believed that stretching my calf would decrease the excruciating pain at the top of my foot. Thank you!!"  Cerebral palsy: Cerebral palsy—a group of neurological Conditions that impact motion, https://www.theorthopaedicandpainpractice.com/treating-foot-arch-pain-with-modern-orthopaedic-pain-management-techniques/