Endurance training is great for health, but can be hard on joints. The KS7 Sports Knee Compression support provides medical grade orthopedic knee support, while Compression Zone Technology provides pain relief. If you have runnerﾒs knee, chronic knee pain, knee injury, swollen arthritic knees, or patellar tendinitis this sleeve is a must. Fits easily under most pants; great solution to bulky braces. Shaped fit prevents binding and pinching. One sleeve per package.