Air Flow insole is a functional insole exerting excellent effects to relieve musculoskeletal pain and improve stability through heel impact absorption and arch supports performed on dual airbags built- in interconnected to both heel and arches -concaved area of the foot. -. Air Flow Insole improves blood circulation through preventing excessive pronation and keeping feet balanced by mitigating pressure on forefoot – . Ergonomic shape maximizes comfortability & air cushion reduces foot fatigue. -. Air stream from heel to arch and from arch back to heel will support arch area when foot step on the ground.