The Airr insole is perfect for those who engage in high impact activities that do a number on their feet. The combination of air chambers and polymer gel cushions your feet and disperses the impact of every foot strike. It is Sof Soleâ€s most cushioning and shock absorbing insole yet, and its ready to go when you are.The Sof Sole Airr Orthotic Insole features an encapsulated air chamber in the heel and polymer gel in the forefoot for maximum shock absorption. Combined with a reinforced stability plate in the arch and heel