Created and developed by Dr Lee Clark
Chartered Physiotherapist · 30+ years in practice
Traditional braces support the knee, but the muscles keep weakening underneath. Pflexx was built to do both.
Pflexx Strength & Support Brace
Pflexx Strength & Support Brace
⚙️ Spring-loaded resistance technology
💪 Strengthens while you walk
🔒 Stays put, no sliding or bunching
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Pflexx Strength & Support Brace
Absolutely miraculous product. My husband had a knee injury and couldn't put any weight on it! Within a few days of wearing the Pflexx Knee Exerciser he was back to work with full knee movement!
Why is it different from other braces?
The PFLEXX® Strength & Support Brace uses spring technology to stabilise the joint while strengthening the muscles around the knee.
Why is that different?
Traditional knee braces support the joint, but can cause the muscles to be used less over time and become weaker — making long-term recovery harder.
More than support.
The high-compression sleeve regulates temperature and boosts circulation to help reduce fatigue and speed up recovery.
Designed to aid full recovery, not just temporary relief.
Why Pflexx is better...
Traditional knee braces and compression sleeves don't fix the problem! They help to take pressure off the joint which feels good, but only while you wear them!
| Pflexx® | Others | |
|---|---|---|
| Reduces Joint Load | ||
| Builds Muscle | ||
| Unique Resistance Technology | ||
| Improves Recovery Time | ||
| Improves Performance |
When Can It Be Used?
It can be worn anytime: during day-to-day activities or when exercising. Almost every knee pain can benefit from building muscles around your knee.
It can be used to:
- Strengthen the knee joint prior to surgery.
- Help rebuild muscle strength after surgery.
- Boost power and strength for sports performance.
- Help people suffering from knee pain
Your Path to Stronger, Pain Free Knees Starts Here
Our spring-powered knee brace features a dynamic resistance system that works with your body to reduce joint pressure and rebuild strength as you move.
Unlike stiff, restrictive braces, Pflexx is designed to move naturally with your knee, helping relieve pain, improve mobility, and promote long-term recovery. Whether you’re walking, working, or getting back to activity, our biomechanics-backed design supports better movement with every step.
3 Levels of Resistance
Each order includes 3 different strength springs
- White: 3.5kg of Resistance
- Yellow: 5kg of Resistance
- Black: 7.5kg of Resistance
They are interchangable depending on the level of support and resistance needed.
The Pflexx knee brace can help arthritis sufferers by actively off‑loading pressure from the joint each time you take a step. Its built‑in springs absorb and redistribute weight, reducing the forces that drive pain and cartilage wear. At the same time, the gentle resistance engages surrounding muscles—improving strength and joint stability, which helps protect your knee over the long term.
The Pflexx knee brace can help with meniscus injuries by reducing strain on the knee joint and supporting the healing process. The built-in spring resistance absorbs impact and helps offload pressure from the meniscus during walking or movement — which can relieve pain and prevent further damage.
Unlike traditional braces that simply hold the joint in place, Pflexx also helps activate and strengthen the muscles around the knee, improving stability and reducing the risk of re-injury. Whether you’re recovering from a tear or managing long-term meniscus wear, Pflexx supports your recovery while keeping you mobile and active.
The Pflexx® Knee Trainer helps support and strengthen the knee during recovery from collateral ligament injuries (MCL or LCL) by engaging the surrounding muscles through built-in spring resistance. This active movement improves joint stability, reduces strain on the ligaments, and promotes faster healing. The compression sleeve also boosts circulation, helping reduce inflammation and support recovery without restricting natural motion.
The Pflexx® Knee Trainer is designed to improve knee stability by strengthening the muscles that support the joint. Its built-in spring resistance activates the quads, hamstrings, and calves during everyday movement, helping to stabilise the knee from all angles. Unlike rigid braces that limit mobility, Pflexx promotes controlled, natural movement while boosting circulation to aid recovery — making it ideal for managing and improving knee instability over time.
The Pflexx® Knee Trainer supports recovery from hamstring sprains by engaging the muscle safely through low-impact, functional resistance during movement. The built-in springs provide gentle resistance that helps rebuild strength in the hamstrings without overloading the injury. Combined with targeted compression to reduce fatigue and improve circulation, Pflexx promotes active recovery while allowing natural movement — ideal for returning to full strength gradually and safely.
The Pflexx® Knee Trainer helps manage Patellofemoral Pain by strengthening the muscles that control kneecap tracking, particularly the quads and surrounding stabilisers. The spring resistance activates these muscles during normal movement, helping improve alignment and reduce pressure on the kneecap. The compression sleeve also enhances circulation and reduces inflammation, supporting pain relief and long-term recovery without restricting mobility.
The Pflexx® Knee Trainer supports recovery from knee swelling by promoting circulation through targeted compression and controlled movement. The high-compression sleeve helps reduce fluid build-up and inflammation, while the spring resistance encourages gentle muscle activation without overloading the joint. This combination aids in reducing stiffness, improving mobility, and accelerating the natural healing process — all while allowing safe, everyday use.
The Pflexx® Knee Trainer aids ACL recovery by strengthening the muscles that support and stabilise the knee, including the quads, hamstrings, and calves. Its built-in spring resistance activates these muscles during everyday movement, helping to restore balance and control around the joint. The compression sleeve reduces swelling and boosts circulation, while the brace’s flexible design allows safe, natural movement — ideal for rebuilding strength post-ACL injury or surgery without over-relying on passive support.
The Pflexx® Knee Trainer is ideal for runners looking to strengthen their knees, improve stability, and reduce the risk of injury. Its spring resistance technology activates key muscles like the quads and hamstrings with every stride, helping to support the joint and absorb impact. The compression sleeve boosts circulation, reduces fatigue, and aids recovery — making it perfect for both training and rehabilitation from running-related knee pain.
The Pflexx® Knee Trainer supports cyclists by strengthening the muscles that power and stabilise the knee during pedalling. Its built-in spring resistance engages the quads, hamstrings, and calves to promote balanced muscle activation and reduce joint strain. The compression sleeve improves circulation and helps prevent fatigue, making it ideal for both long rides and recovery from cycling-related knee issues like patellofemoral pain or overuse injuries.
The Pflexx® Knee Trainer is perfect for gym-goers looking to build strength, stability, and confidence during workouts. Its spring-loaded resistance activates key muscles around the knee — including the quads, hamstrings, and calves — during functional movements like squats, lunges, and leg presses. This helps support proper joint alignment, reduce injury risk, and enhance performance, while the compression sleeve boosts circulation and speeds up recovery between sessions.
The Pflexx® Knee Trainer is a great companion for hiking and trail running, where uneven terrain and prolonged activity can put extra stress on the knees. Its spring resistance strengthens the supporting muscles as you move, improving joint stability and reducing fatigue on long climbs or descents. The compression sleeve helps boost circulation and manage swelling, making it ideal for preventing injury and supporting recovery in demanding outdoor conditions.
The Pflexx® Knee Trainer supports horse riders by strengthening the muscles that stabilise the knee during riding, helping improve balance, control, and joint alignment in the saddle. The spring resistance activates key muscle groups with each movement, while the compression sleeve enhances circulation and reduces fatigue — especially useful during long rides or repetitive training. It’s ideal for managing knee pain, improving stability, and supporting recovery without restricting mobility.
The Pflexx® Knee Trainer is ideal for basketball and netball players who need strong, stable knees for jumping, landing, and quick direction changes. Its spring resistance helps activate and strengthen the muscles around the knee, improving joint control and reducing the risk of injuries like ligament strains. The compression sleeve supports circulation and reduces fatigue during intense play, making it perfect for both performance and recovery on and off the court.
The Pflexx® Knee Trainer supports golfers by strengthening the muscles that stabilise the knee during swings, walking, and time spent on uneven terrain. The spring resistance helps build joint control and reduce strain, especially during rotation and weight transfer. With added compression to boost circulation and reduce fatigue, Pflexx is ideal for managing knee discomfort and enhancing stability throughout your round.
The Pflexx® Knee Trainer is a valuable tool for winter sports enthusiasts, helping to build strength, stability, and resilience in the knees. Whether you're skiing or snowboarding, its spring resistance activates key muscles to support joint control during dynamic movements like turning, jumping, and landing. The compression sleeve enhances circulation and reduces fatigue in cold conditions, making it ideal for injury prevention, improved performance, and faster recovery on and off the slopes.
The Pflexx® Knee Trainer is perfect for racket sports like tennis, squash, and badminton, where quick footwork and lateral movement put high demands on the knees. Its spring resistance strengthens the muscles that stabilise the joint during dynamic changes in direction, helping to prevent strain and injury. The compression sleeve boosts circulation and reduces fatigue, making it ideal for maintaining knee health and performance throughout intense rallies and long matches.
FAQ's
Why is it different from other knee braces?
Unlike standard braces that only support the joint, Pflexx® uses built-in resistance to strengthen the knee and surrounding muscles — helping fix the problem, not just manage it.
Does it actually help strengthen my knee?
Yes — the resistance from the springs activates your muscles during normal movement, promoting strength and joint stability over time.
Can I wear it all day?
Absolutely. Pflexx is lightweight, breathable, and designed for long-term comfort whether you’re walking, working, or recovering. We recommend starting with a short amount of use and building it up over time for optimal results.
Can I use it while exercising?
Yes, Pflexx is suitable for low- to high-impact activity, walking, running, rehab, and strength building.
How do I know which size to get?
Please refer to our size guide above the price at the top of the page.
Is it adjustable?
Yes, there are velcro straps that can be adjusted to get the perfect fit!
How do I wash it?
We recommend take the springs out of the knee brace then hand-washing and air-drying to maintain the integrity of the fabric.
How long does shipping take?
If you're in the UK it will take 3-4 days from purchasing the order to receive your item.
For other countries it is usually 5-10 working days.