Healthy Feet Solutions™ Massaging Insoles alleviate chronic pain in the back, hips, knees, or feet. By providing proper structure and alignment, Healthy Feet Solutions™ Massaging Insoles improve posture, and increase circulation by massaging the bottom of your feet. The therapeutic massage effect makes it easier on joints and the back by reducing pressure with every step. Just like walking on a soft sandy beach. *Please see size chart below for proper sizing.*