When the arches of both or either feet collapse, the foot rotates internally. This causes the tibia (shin) to rotate, which in turn causes the knee and hip to rotate. As you can see in the image, these rotations cause asymmetry in the entire body and cause an abnormal curvature of the spine too. This causes pain in your feet, ankles and possibly in your knees and lower back too.
Podiapro’s custom insoles are designed to work in the following ways to bring the desired results: