Defiance III Knee Brace

Defiance III
Defiance III


Defiance® III

Knee Guarantee

Choose Confidence. Choose DonJoy.

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. First introduced in 1992, DonJoy has produced more than a million braces; in college football alone, 22 of the Associated Press Top 25 teams use the Defiance knee brace.

Learn the facts about bracing for ACL treatment and prevention.

Indications: Hyperextension; Moderate to severe ACL or PCL instabilities; ACL/PCL instabilities combined (CI); MCL/LCL instabilities; ACL or PCL reconstruction; Prophylactic use

Support Guide


Your options for managing your ACL injury depend on several factors, including how severe the injury is and your lifestyle. Read More...

Ordering Information

  • Overview
  • Videos
  • Features & Benefits
  • Specifications
  • Related Products

Defiance® Colors

Make it your own - 31 Different color choices

Black Gloss

Black Matte

Metallic Black Gloss

Metallic Gunmetal Gloss

Metallic Silver Gloss

Smoke Matte

White Gloss

Metallic White Gloss

Bright Blue Gloss

Navy Gloss

Metallic Navy Gloss

Metallic Bright Blue Gloss

Powder Gloss

Seafoam Gloss

Emerald Gloss

Metallic Forest Gloss

Metallic Gold Gloss

Volt Gloss

Bumble Gloss

Safety Gloss

True Red Gloss

Metallic True Red Gloss

Fuscia Gloss

Cotton Candy Gloss

Crimson Gloss

Grape Gloss

Velvet Gloss

Olive Drab Green Matte

Desert Tan Matte

Flat Dark Earth Matte

Stars Stripes Gloss


Motion is Medicine – Jennifer's Story


DonJoy Defiance Knee Brace Overview


DonJoy ACL Knee Brace Fitting


DonJoy Defiance III CCMI, How to Measure


FourcePoint Technology

  • Backed by DonJoy's Knee Guarantee Program™
  • Custom-made craftsmanship
  • Lifetime warranty on frame and hinges
  • Clinically-proven 4-Points-of-Leverage System™
  • Custom fabricated
  • Swooping Thigh Cuff for inner thigh clearance and bilateral brace use
  • Strong, lightweight carbon composite frame
  • 24-hour turnaround time


  • Patented, clinically-proven FourcePoint™ hinge technology (stop kit not included)
  • Over 40 custom frame colors and graphics
  • Defiance III Extra includes reinforced carbon composite frame
  • Metal Caps - PowerCaps, metal strap tab caps (recommended for contact sports)
  • High strength stainless steel gears (recommended for contact sports)
  • ACL, PCL, or Combined Instability (CI) strap configurations
  • Standard Low Profile Hinge
  • DropLock Hinge

Ordering Information

Each Defiance III is custom made.
Measurements taken with CCMI Mark III or casted in weight bearing.

Size Thigh Calf
Minimum 12.5" (31.8 cm) 10.25" (26 cm)
Maximum 38.125" (97 cm) 26.25" (66.5 cm)


Part Number Description Size
11-0075-x-00000 Lycra Suspension Sleeve S - XXL
11-0122-x Neoprene Suspension Sleeve XS - XXL
11-1006-x-06000 Impact Guard S - XXL
11-1367-9-06000 Calf Pinch Guard Universal
11-0398-9-00000 Full Extension Stop Universal
25-0422-0-00000 Flexion/Extension Stop Kit Universal
11-0103-x-06000 Sports Brace Cover (short) S - XXL
11-0016-x-06000 Sports Brace Cover (standard) S - XXL
n/a Suede Strap Pad Kit Universal
n/a Suede Liner Kit Universal
n/a Chamois Strap Pad Kit Universal
n/a Chamois Liner Kit Universal
25-1923-0-06000 Air Condyle Kit Universal
25-1480-0-00000 Brace Bag Universal
11-1525-x Tru-Pull Advance Attachment XS - XXXL
11-1415 Sili-Grip Strap Pad Kit Universal
11-0543-x-06000 Neoprene Suspension Strap Kit 1 = XS, 2 = S/M, 3 = L/XL/XXL



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