The McDavid 421 Knee Support has been specially designed by orthopedists to support your kneecap while doing exercises or while working and for joint disorders, capsular ligament problems, cartilage problems and for fairly serious other disorders and complaints to your knee ligaments like, Tendinitis, Runner\'s Knee and Jumpers Knee. The McDavid 421 Knee Support also has an exceptionally high wearing comfort and optimal fit. All these unique features are the reason that the McDavid 421 Knee Support has been used with great success by many of our patients and (professional) athletes who were looking for the best support and protection when suffering from the abovementioned disorders.