Airflex is extremely breathable material for cool comfort during active use. It is specifically designed for air circulation, heat transfer and moisture wicking away from the body. Any activity where excess heat or perspiration could be felt under the brace is an ideal application for this product. Additionally, it is stretchy and smooth for the highest level of comfort. The Ortho Active Airflex Jumper̥s Knee Brace is designed to provide compression and support to the knee. The inferior and superior straps reduce tension on the patellar tendons, thus reducing the pain associated with repetitive loading of the knee joint.