High-strength medical silicone insole. Absorbs the shocks that the foot, knee and ankle joints receive from the body weight. It provides uniform pressure distribution thanks to the different silicone densities it has. The blue silicone on the metatarsal and heel is softer for better pressure absorption at these specific points. The perforated surface helps with smooth airflow and allows the foot to "breathe". Size : 35-37 Indications: Relief, Gait, Back Braking, Orthopedic Problems, Orthostasis, Feet, Pain, Stability