Ossur CTi®3 Knee Braces Bundle - ATHLETE EDITION
Össur CTi®3 Knee Brace Pair Bundle – Athlete Edition
The Össur CTi®3 Knee Brace Pair Bundle – Athlete Edition provides bilateral knee support for active use. This bundle includes two CTi®3 knee braces — one left and one right — plus undersleeves and oversleeves for added comfort and brace wear.
The CTi®3 is a lightweight, rigid ligament knee brace designed to provide functional support for knee conditions involving the ACL, PCL, MCL, and LCL. Its carbon composite frame combines rigid structural support with a streamlined, low-profile design.
Anatomically designed hinges help support controlled knee movement, while adjustable straps and padding help provide a secure, personalized fit during activity.
Bundle Includes
- 1 Left Össur CTi®3 Knee Brace
- 1 Right Össur CTi®3 Knee Brace
- 2 Össur Coolmax Undersleeves
- 2 Össur Neoprene Oversleeves
Pair Sizing
The selected size applies to both the Left and Right CTi®3 Knee Brace included in this bundle. If you require different sizes for your left and right knees, please contact us before ordering for assistance.
Features
- Bilateral Support: Includes one left and one right CTi®3 Knee Brace.
- Ligament Support: Designed to provide functional support for knee conditions involving the ACL, PCL, MCL, and LCL.
- Lightweight Carbon Composite Frame: Provides rigid structural support while helping minimize unnecessary bulk.
- Coolmax Undersleeves: Designed to be worn underneath the braces for added comfort.
- Neoprene Oversleeves: Designed to be worn with the CTi®3 braces for additional coverage and support.
- Adjustable Fit: Adjustable straps and anatomical design help provide a secure, personalized fit.
CTi®3 Size Guide
Knee width (M/L) is the primary measurement for determining CTi®3 size. Thigh circumference can be used as an additional measurement, particularly when the knee measurement falls between sizes.
| Size | Knee Width (M/L) | Thigh Circumference |
|---|---|---|
| Small | 8.9–10.2 cm / 3.5–4 in | 40–47 cm / 15.7–18.5 in |
| Medium | 10–11.4 cm / 3.9–4.5 in | 45–55 cm / 17.7–21.7 in |
| Large | 11.2–12.7 cm / 4.4–5 in | 52–61 cm / 20.5–24 in |
| X-Large | 12.5–14 cm / 4.9–5.5 in | 58–67 cm / 22.8–26.4 in |
How to Measure: Measure the width of the knee at the joint line while standing in a normal weight-bearing position. For the secondary measurement, measure the circumference of the thigh 20 cm (8 inches) above the center of the kneecap.
CTi®3 Size Guide
Find Your CTi®3 Size
Measure your leg, enter your measurements below, and our CTi®3 Size Finder will compare them with the sizing ranges to identify your closest match.

CTi®3 Size Finder
Enter your measurements below. Use inches only.
How to Measure
Use the three quick visuals below, then enter your measurements into the size finder above.

Knee Width
Measure straight across the center of the knee. This is the primary measurement used to determine CTi®3 size.

Thigh Circumference
Measure around the thigh 8 inches above the center of the kneecap.

Distal Patella
Measure around the leg at the distal-patella point below the knee.
CTi®3 Size Chart
All measurements below are in inches.
| Size | Knee Width | Thigh Circumference | Distal Patella |
|---|---|---|---|
| Small (S) | 3.5" – 4" | 15.7" – 18.5" | 11" – 13.4" |
| Medium (M) | 3.9" – 4.5" | 17.7" – 21.7" | 13.4" – 15" |
| Large (L) | 4.4" – 5" | 20.5" – 24" | 15" – 16.1" |
| X-Large (XL) | 4.9" – 5.5" | 22.8" – 26.4" | 16.1" – 17.3" |
Between Two Sizes?
Use knee width as the primary sizing measurement. Then compare thigh circumference and distal-patella circumference. If your measurements point toward different sizes, contact our CTi Sports Bracing Fit Specialists before ordering.
Helpful CTi®3 Videos
Quick videos covering the brace, measurement process, and strap adjustment.
CTi®3 Overview
A quick look at the CTi®3 brace and fit.
How to Measure
See how the CTi®3 sizing measurements are taken.
CTi®3 Strapping Tips
Properly secure and adjust your CTi®3 straps.
Found Your CTi®3 Size?
Choose your recommended size and select the correct left or right brace. If your measurements don't clearly match one size, contact us before ordering.
Shop Össur CTi®3The CTi®3 combines lightweight support with a design made for active movement.
Support That Moves With You
The Össur CTi®3 Knee Brace combines a lightweight, rigid frame with anatomically designed hinges to provide functional ligament support and controlled movement during active use.
Precision Hinge
Dual‑pivot hinge follows natural knee motion, supporting ACL, MCL, LCL, and PCL without restricting movement.
Adjustable Straps
Customizable strap system locks the brace securely in place for a personalized, no‑slip fit through every ride.
Carbon Fiber Strength
Lightweight, rigid carbon composite frame engineered for superior stability and high‑impact performance.
Support for Every Move
The Össur CTi®3 Knee Brace combines a lightweight carbon composite frame, anatomically designed hinges, and adjustable components to provide functional support during active use.
Premium Recovery Supplies
We offer premium CTi knee bracing and performance support gear trusted by professional athletes - engineered for high‑impact sports with pro‑grade protection, lightweight carbon frames, and precision fit.
Free Shipping
That's right! Free shipping on every order from our orthopedic store, no matter the amount.
Authorized Retailer
Which includes Manufacturer Warranty on many orthopedic care products.
Low Price Guaranteed
Put money back in your pocket with our industry leading low prices
Flexible Payments
HSA/FSA and interest free payment plans available.
Hassle-Free Returns
30-day return window from the date of purchase.
Frequently Asked Questions
Please read our frequently asked questions to find out more.
What makes CTi®3 different from other knee braces?
The Össur CTi®3 Knee Brace features a lightweight carbon composite frame and anatomically designed Accutrac® hinges. Its adjustable straps, flexible cuffs, and circumferential padding are designed to provide a secure fit while supporting controlled knee movement.
Who can benefit from wearing a CTi®3 Knee Brace?
The CTi®3 is designed to provide functional support for individuals with ACL, PCL, MCL, and LCL ligament injuries or instabilities. If you are using a knee brace for an injury, rehabilitation, or medical condition, consult your healthcare professional for guidance on appropriate use.
Can I wear the CTi®3 during competition?
Absolutely. CTi®3 is competition‑ready - designed for mobility and certified safe for use in most professional and amateur sporting events.
How do I find the right size?
For CTi®3 sizing, knee width is the primary measurement. Measure the width of the knee according to the CTi®3 sizing instructions.
What is the warranty and return policy?
CTi®3 includes a limited manufacturer warranty covering defects in materials and workmanship. Returns are accepted within 30 days in original condition.
