Economy Hinged Knee
DonJoy®
Bilateral hinges and compressive fabric work together to stabilize the MCL and LCL by limiting side-to-side movement. The hinged frame, flexible sleeve construction, and adjustable fit work together to guide motion without restricting mobility. Built for daily wear, it delivers consistent support during work, light activity, or rehabilitation.
Recommended for:
- Mild to Moderate MCL and/or LCL Sprains
- Mild Arthritis
- Post Arthroscopic Meniscetomy
- Mild Knee Instabilities
- Soft Tissue Injuries
Find the Right Fit:
- Stand with feet shoulder-width apart, knees slightly bent, leg muscles gently flexed.
- Place measuring tape flat against the skin (not tight). Measure leg circumference at:
- 6 inches above kneecap
- Center of kneecap
- 6 inches below kneecap
- Use chart to find your size. If you land between sizes—or if thigh and calf measurements suggest different sizes—choose the larger option.
A correctly sized brace will feel comfortably snug and supportive without being excessively tight.
| Size | Thigh | Knee Center | Calf |
|---|---|---|---|
| XS | 13"-15.5" (33-39cm) | 12"-13" (30-33cm) | 10"-12" (25-30cm) |
| S | 15.5"-18.5" (39-47cm) | 13"-14" (33-36cm) | 12"-14" (30-36cm) |
| M | 18.5"-21" (47-53cm) | 14"-15" (36-38cm) | 14"-16" (36-41cm) |
| L | 21"-23.5" (53-60cm) | 15"-17" (38-43cm) | 16"-18" (41-46cm) |
| XL | 23.5"-26.5" (60-67cm) | 17"-19" (43-48cm) | 18"-20" (46-51cm) |
| XXL | 26.5"-29.5" (67-75cm) | 19"-21" (48-53cm) | 20"-22" (51-56cm) |
| XXXL | 29.5"-32 (75cm-81) | 21"-23" (53cm-58cm) | 22"-24" (56cm-61cm) |
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Features and Benefits:
Controlled Lateral Support
Removable aluminum hinges help control lateral knee instability and promote natural movement.Reduces Swelling and Joint Stiffness
Neoprene or Drytex fabric applies consistent compression and warmth to help manage fluid buildup.Stabilizes and Centers the Kneecap
Open buttress guides the patella into correct alignmentSecure All-Day Knee Support
The flexible sleeve and adjustable fit system keep the brace positioned comfortably through movement and daily tasks.Comfortable Bend Behind Knee
An optional popliteal cutout reduces material bunching behind the knee for smoother flexion during sitting, walking, and activity.
Is this brace right for me?
The DonJoy Economy Hinged Knee Brace is designed for individuals returning to daily activity after a minor knee injury, post-surgical patients, and anyone managing mild-to-moderate ligament instability who needs reliable, all-day support without the bulk of a rigid brace. This knee brace features encased aluminum hinges with a polycentric design to manage the side-to-side forces that strain the MCL and LCL while allowing the knee to flex and extend naturally. The compressive fabric layer (neoprene or breathable Drytex) applies consistent pressure around the joint to help reduce fluid buildup and maintain the warmth that keeps soft tissue flexible during recovery. A popliteal cutout behind the knee eliminates bunching during bending, and the wraparound style makes fitting easier when mobility is limited.
The standard pull-on sleeve design provides firm compression; the optional wraparound style allows easier application when knee mobility is limited, with both delivering full hinge stabilization.
Choose neoprene for therapeutic warmth and compression during recovery, or breathable Drytex for improved airflow and comfort in warm climates or for sensitive skin. This brace can be used in salt or fresh water.
Ideal for:
- Walking on uneven surfaces
- Light workouts and fitness activity
- Standing for long periods
- Recreational sports
- Water sports
- Recovery after minor knee procedures
- Returning to activity after injury
Find the Right Fit:
- Stand with feet shoulder-width apart, knees slightly bent, leg muscles gently flexed.
- Place measuring tape flat against the skin (not tight). Measure leg circumference at:
- 6 inches above kneecap
- Center of kneecap
- 6 inches below kneecap
- Use chart to find your size. If you land between sizes—or if thigh and calf measurements suggest different sizes—choose the larger option.
A correctly sized brace will feel comfortably snug and supportive without being excessively tight.
| Size | Thigh | Knee Center | Calf |
|---|---|---|---|
| XS | 13"-15.5" (33-39cm) | 12"-13" (30-33cm) | 10"-12" (25-30cm) |
| S | 15.5"-18.5" (39-47cm) | 13"-14" (33-36cm) | 12"-14" (30-36cm) |
| M | 18.5"-21" (47-53cm) | 14"-15" (36-38cm) | 14"-16" (36-41cm) |
| L | 21"-23.5" (53-60cm) | 15"-17" (38-43cm) | 16"-18" (41-46cm) |
| XL | 23.5"-26.5" (60-67cm) | 17"-19" (43-48cm) | 18"-20" (46-51cm) |
| XXL | 26.5"-29.5" (67-75cm) | 19"-21" (48-53cm) | 20"-22" (51-56cm) |
| XXXL | 29.5"-32 (75cm-81) | 21"-23" (53cm-58cm) | 22"-24" (56cm-61cm) |
How To:
Brace Application Guide
- Unfasten and loosen the straps at the thigh and calf.
- Grasp the edges of the sleeve and pull onto leg. If using wrap-around version simply wrap aroundleg and fasten over the front of the leg. Position the sleeve so that the hinges are parallel to each other, and the top of the circular cut-out aligns with the top of the knee cap.
- Fasten the support straps at the thigh and calf.
To remove, unfasten straps and apply a downward pressure to the top of the sleeve at the hinges.
Download product details.
Product Care
Hand wash in cold water using mild soap, rinse thoroughly. AIR DRY. Hinges may be removed or washing. Note: If not rinsed thoroughly, residual soap may cause skin irritation and deterioration of the material.
This brace may be used in fresh or salt water. Following use in water activities, drain thoroughly and rinse with clean, fresh water. AIR DRY
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