Donjoy Defiance III

Extreme sports.  Water sports.  Contact and non-contact sports.  The Defiance III is Donjoy's flagship custom knee ligament brace, offering a perfect, custom-made fit for every athlete.  For weekend warriors to elite athletes including extreme surfer Garrett McNamara and Motocross racer Brett Metcalfe, Defiance III is the strongest of Donjoy's functional knee braces.  The custom carbon fiber composite is lightweight; the low-profile design fits comfortably under clothing and sports uniforms and is available in more than 40 frame colors and graphics.  Defiance III incorporates swivel strap tabs plus a medial swooping thigh; a diagonal bend on the inside of the thigh section provides clearance for the other leg or for an object such as a gas tank, horse, or another brace.  Defiance technology is on the field, on the court, on the slopes, and in the water protecting knees and providing confidence to those who wear it.


  • Hyperextension

  • Moderate to severe ACL or PCL instabilities  

  • ACL/PCL instabilities combined

  • MCL/LCL instabilities

  • ACL or PCL reconstruction

  • Prophylactic use  


Donjoy Defiance OA

Donjoy's premier Custom OA product.  It is designed for the active OA patient, is extremely lightweight, and provides durable support for moderate to severe levels of osteoarthritis.  The bilateral hinge bars offers support for ligament instabilities and work in conjunciton with a patented telescoping condyle pad which puts the load control in the hands of the patient.  Ideally suited for patients with active lifestyles or athletes.