Sofsole Insoles Airr Orthotic (Womens) The Sof Sole Airr Orthotic insole utilizes four specific technologies to optimize cushioning and stability. The polymer gel cushioning, reinforced stability plate, encapsulated air chamber, and energy rebound foam all work together to help reduce foot pain. The Airr OrthoticTM from Sof Sole employs Airr technology along with the stability of which orthotics offer. These design attributes allow the Airr OrthoticTM insole to: Ease the stress on joints in the ankles and knees Increase breathability and comfort for the surface of your foot Maintain foot alignment and relieve pressure on the plantar fascia Provide shock absorption with air chambers in the heel and arch