See more product details View larger View larger View larger SKYDEX technology air capsules in the heel and arch convert impact into kinetic energy for ultimate shock absorption. Highly resistant and flexible Polyurethane footbed for full-foot comfort. Gel forefoot enhances shock absorption. COOLMAX COOLMAX Microban Microban Since it began in 1991, Sof Sole has grown from a small, sports-specific insole line to a worldwide leader in a variety of footwear accessory categories. Sof Sole manufactures insoles, socks, and shoe care products to suit any need: from increased comfort for every day to performance enhancement for high-impact activities Sof Sole products feature technologically advanced designs and materials to improve the comfort and performance of footwear, making the brand the 'Sole of Performance'. 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 Sole’s most cushioning and shock absorbing insole yet, and its ready to go when you are.