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ActiSupport™ Knee Compression Sleeve

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  • Two uniquely designed springs support your weight to lessen the strain on your knee ligaments and protect against any twists or sprains
  • A silicon gel pad cushions your kneecap to reduce pain around your patella
  • Revolutionary tri-weave material gently warms and massages your knee to improve blood flow, which aids recovery from injuries

Instant Pain Relief for your Sore, Stiff Knees

Safer than surgery, easier than injections, no nasty side-effects from medication!

Imagine for a moment how it would feel to live your life pain-free once again...

No more wincing at the sight of staircases.

No fear of going for a short walk in the countryside.

No lying awake in bed trying to ignore the unbearable pain in your knee.

You can say goodbye to all of this by simply wearing the ActiSupport Knee Sleeve. Here's why:

We hired a team of the UK's top medical professionals to help design this groundbreaking new product. Physios. Doctors. Surgeons.

Between them, there wasn't a single thing about knee pain that they didn't know. But one thing was clear right away...

This team of industry-leading healthcare professionals all agreed that 99.9% of knee pain cases are due to the same core problem.

We'll tell you all about that specific problem later...

But once we discovered that just one main factor was responsible for all major knee issues, we knew we could create a flawless solution that would eliminate knee pain for good.

Which is exactly why...

We guarantee the ActiSupport Knee Sleeve will reduce your knee pain from the moment you put it on, or we'll give you your money back.

Just take Derek for example, who tried one of our knee sleeves...

You see, when people get knee pain, it always goes back to one original cause... 

Too much pressure going through the ligaments in your knee.

So, how can we fix that?

The ActiSupport Knee Sleeve features the unique ActiSupport™ metal springs on both sides of the sleeve. These two metal springs absorb your body weight, which reduces the amount of pressure going through your knee.

This revolutionary sleeve also features a silicone gel pad that rests over the knee cap. This alleviates pain from the soft tissue that surrounds your knee cap, as well as the surrounding ligaments.

Again, in case we weren't clear enough...

We're so confident in the science behind this, that if
the ActiSupport Knee Sleeve doesn't
ease your pain, we'll give you a full refund.

Designed in the UK by Medical Professionals:

  • Silicon gel pad surrounds your kneecap to stabilise and protect from bumps. 

  • Support springs on both sides relieve strain on your joint by absorbing excess weight. 

  • These springs allow a full range of motion but protect against twists and sprains.

  • Tri-weave material warms and gently massages your knees, providing natural joint lubrication.

  • Anti-slip silicone lining keeps the sleeve in the right place. Unlike most knee braces, it does not roll down or move out of place.

  • Lightweight and comfortable design allows it to be worn underneath clothing discretely.

  • Fully machine washable and suitable for both men and women of all ages.

benefits of wearing knee sleeves

The ActiSupport™ Knee Sleeve has solved knee pain for over 5,000 people:

"This has completely relieved my knee pain, and given me the confidence to start running again which I hadn't been able to do for years. Truly a life changing product for me!"
- Lauren, 49, Northampton

"This is the best knee brace I've ever used. Had sore knees for years playing football and nothing I've ever tried has worked as well as this. Absolutely over the moon" 
- Freddie, 42, Warwickshire
"Fits like a glove - it doesn’t slide down like other braces I’ve tried, solid support on the sides without being restrictive or bulky- very pleased with my purchase!"
- Susan, 60, Durham

"I've been wearing this support for one day, and the pain in my knee is gone. GONE! I am absolutely blown away. Stop hesitating and BUY ONE!!!"
- Laura, 54, Manchester
To find the perfect fit, take a measuring tape and find the point on your thigh that is 10cm above the middle of your kneecap.


Measure the circumference of your thigh around this point and then use the table below to select the perfect size.

Remember, we offer free exchanges, so if your knee sleeve arrives and you decide you want to swap for a smaller or larger size, just contact us to arrange an exchange.
SIZE Thigh Circumference (inches) Thigh Circumference (cm)


Below 12 Below 30


12-16.5 30-42


XL 20+ 51+

We offer Royal Mail 48-hour shipping ABSOLUTELY FREE with all orders.

If you need your order faster than that you can select our tracked 24-hour service.

You can select your preferred shipping method when checking out.

All orders placed before 4pm British time will be despatched from our warehouse on the same day. Any orders placed after this time will be despatched the following day.

We truly believe that this is one of the best products in the world, which is why we want to make sure we back that up with a risk-free ironclad 30 Day No Questions Asked Money Back Guarantee. 

If it doesn't ease your pain - get your money back.


Unlike many basic knee sleeves, which offer minimal pain relief, the ActiSupport Compression Sleeve has been designed by professionals and is medically tested. 

The silicon gel pad surrounds the kneecap to reduce pressure on the patella, easing pain and providing extra support. 

The support springs on both sides of the sleeve relieve strain on the joint by absorbing the weight placed on the knee, reducing strain and easing pain. 

You'll be amazed at how good you feel as soon as you put it on!


What kind of knee pain will it relieve?

The Knee Sleeve will help whether you only suffer from occasional knee pain, or you have more serious pain or a specific condition. It will alleviate pain from the following conditions:

  • Osteoarthritis
  • ACL/MCL injuries
  • Bursitis
  • Tendonitis
  • Rheumatoid arthritis
  • Instability
  • Any other joint discomfort

If you are unsure if this knee sleeve will be suitable for you, feel free to contact us where we can provide professional advice for your specific condition.

Will the sleeve slip down when exercising with it on?

We've incorporated an anti-slip of silicone on the inner lining of the sleeve. This provides good grip and stops the sleeve from slipping or rolling down, regardless of how hard you move or exercise.

Can they be worn all day, like when working?

Yes! They are suitable to be worn all day during work, when running, during workouts and while exercising. 

Can I Use this Knee Sleeve During Sports?

The sleeve is perfect for wearing while playing sports, especially if you've suffered an injury from a twist or direct impact. We have designed the knee sleeve to improve healing time while also protecting against the risk of overloading or developing a second injury. The elasticity and contour of the knit ensures that your mobility is not restricted, whilst its light and comfortable design means that you will hardly notice you're wearing it!

Can I wear this Knee Sleeve Underneath Clothing?

Yes! With its light and slim design, and anatomically contoured shape, the Knee Sleeve can comfortably be worn under clothing. This means you can continue to enjoy the pain-relieving support of the Sleeve as you go about your day or play your favourite sport.

What do I do if it doesn't fit me correctly?

We offer a simple no-hassle returns and exchange process. Simply contact us by email info@actiflexshop.com and we'll ship a replacement size to you free of charge, or arrange a refund.

How do the unique features of the Knee Sleeve Work?

Unlike many basic knee braces, which offer minimal pain relief, the ActiSupport Knee Sleeve incorporates a variety of features to provide optimal pain relief. The viscoelastic silicon pad is flat and anatomically designed to improve comfort by centring the kneecap and securely protecting the patella (generally known as the kneecap) securely as you move. This pad includes 'wings' on each side to ensure proximal extension as far as the vastus-medialis muscle, which has proven to improve proprioception.