DonJoy Defiance® Custom Knee Brace


The custom Defiance is DonJoy’s flagship knee brace. With clinically-proven technology including the 4-Points-of-Leverage System™ plus innovative, high-tech materials and design, this lightweight brace provides durable support for moderate-to-severe ACL, PCL, MCL and LCL instabilities. Plus, the low-profile design fits comfortably underneath clothing and sports uniforms, including hockey and football. As the strongest of DonJoy’s functional braces, the custom, carbon composite Defiance is recommended for high-collision sports, while its featherweight materials and custom fit also make it the brace of choice for activities of daily living. Available with the LoPro FourcePoint Hinge, the only hinge clinically-proven to protect the ACL. 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.

Indication: Hyperextension; Moderate to severe ACL or PCL Combined Instabilities (CI); ACL or PCL reconstruction; Prophylactic use

Learn the facts about bracing for ACL treatment and prevention.

  • 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
  • ACL, PCL, or Combined Instability (CI) strap configurations
  • 24-hour turnaround time


  • Patented, clinically  proven FourcePoint™ hinge technology (stop kit not included)
  • Over 40 custom frame colors and graphics
  • Defiance 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)
  • Standard Low Profile Hinge
  • DropLock Hinge

Available on backorder


Ordering Information

Each Defiance is custom made. Call us for more information.
Measurements taken with CCMI Mark III or casted in weight bearing.

Minimum 12.5″ (31.8 cm) 10.25″ (26 cm)
Maximum 38.125″ (97 cm) 26.25″ (66.5 cm)


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 Slide Shield Universal
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
n/a Chamois Pneumatic Universal
11-0400-9-00000 Pneumatic Condyle Pad 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
11-0177-0-00000 Chamois Liner n/a
11-0757-x-06000 Chamois Strap Pads n/a


Additional information

Weight 5 lbs
Dimensions 18 × 8 × 8 in


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