Donjoy Armor Professional Knee Brace With Fourcepoint

FREE UK delivery on all products

We also deliver to Europe.
Find out more

Need help with 
your purchase?

Contact us by phone or email..
Contact us

12 months warranty 
as standard

Great quality & peace of mind.
Find out more
Related Products

Donjoy Armor Professional Knee Brace With Fourcepoint

  (16 Reviews)
Ligament / Leg:  
£294.98   (£245.82 Exc. VAT)  
List Price:  £499.99
Availability: In Stock Image
Donjoy Armor Black Lycra UndergarmentDonjoy Armor Black Lycra Undergarment
  • The ultimate ACL knee brace providing support to the knee joint
  • Designed specifically for skiing, motorcross, extreme sports and contact sports 
  • Suitable for moderate to severe ACL instabilities, reconstruction and deficiencies
  • Provides unbeatable supports and prevents hyperextension of the knee

Brand:  Donjoy

Donjoy Armor Knee Brace with Fourcepoint

The Donjoy Armor Knee Brace with Fourcepoint is the ultimate knee brace for the protection of the ACL and hyperextension injuries. The Donjoy Armor is the ideal knee brace for skiing and professional sports use.

Constructed from light aircraft grade aluminium, the Donjoy Armour With Fourcepoint Knee Brace is exceptionally strong and lightweight and enables you to continue with any sporting activity. As this is the standard short calf version, the knee brace doesn't become trapped in either a ski or motorcross boot and remains clear from the top of your boot. This makes the support more versatile, allowing it to be used without restriction across a number of sports.

Donjoy Armor Knee Brace With Fourcepoint Hinge



The Donjoy Armor with Fourcepoint Knee Brace is a hinged knee brace using the Donjoy Fourcepoint Hinge Technology. The spring loaded Fourcepoint Hinges keep the hamstring in constant tension. As the hamstring is attached to the tibia (or shin bone) this tension pulls the tibia back keeping it stable and almost entirely eliminating the chance of an ACL injury.

Donjoy Knee Braces are designed to react during leg extension and offer an increasing resistance in the last 35 degrees of extension, in order to reduce extension shock and increase posterior tibial loads. 

The hinge has three adjustment settings to vary the amount of resistance to best suit the advice of your doctor and your own personal comfort.

The Donjoy Armor with Fourcepoint is ideal for patients returning to sports specific activity after ACL reconstruction, an ACL deficient knee or for prophylaxis. This Donjoy hinged knee brace is only suitable for ACL injuries. If you have a PCL injury or have a combination of knee injuries or problems and require a combined instability knee brace (CI), please see the Donjoy Armor.

Features of the Donjoy Armor with Fourcepoint Knee Brace

  • Enhanced Four-points-of-leverage
  • Adjustable resistance offered in 25-0, 35-10, 45-20 degrees (shipped with 35-10 degrees)
  • Gradual “soft” stop to extension
  • Helps prevent the knee from Hyperextension
  • Flexion-extension control
  • Suitable for men and women
  • Short calf for boot clearance
  • Moldable, medial swooping frame for custom fit
  • Strong 6061 T6 aircraft aluminum frame
  • 1 year warranty on frame and hinge
  • Standards anti-migration supra Condylar pad
  • 6 months warranty on soft goods.

Donjoy Armor With Forcepoint Knee Brace Full Pack

Suitable Sporting Activities

  • Tennis
  • Ski
  • Motocross
  • Golf
  • Football/soccer
  • Basketball
  • Cycling
  • Volleyball
  • Handball
  • Watersports

Sizing Information

The Donjoy Armor with Fourcepoint Knee Brace is available in 7 sizes and is suitable for men and women.

The thigh measurement is taken around the thigh 15 cm (6") above the knee cap. The knee centre measurement is taken directly around the centre of the knee cap. The calf measurement is taken around the calf 15cm (6") below the knee cap.

For extra information and directions on how to size and apply your knee brace, check out our blog.

Size Thigh Circumference (cm/inches) Knee Centre Circumference (cm/inches) Calf Circumference (cm/inches)
Extra Small

33 - 39cm

13 - 15.5"

30.5 - 33cm

12 - 13"

25.5 - 30.5cm

10 - 12"


39 - 47cm

15.5 - 18.5"

33 - 35.5cm

13 - 14"

30.5 - 35.5cm

12 - 14"


47 - 53cm

18.5 - 21"

35.5 - 38cm

14 - 15"

35.5 - 40.5cm

14 - 16"


53 - 60cm

21 - 23.5"

38 - 43cm

15 - 17cm

40.5 - 47cm

16 - 18"

Extra Large

60 - 67cm

23.5 - 26.5"

43 - 48.25cm

17 - 19"

47 - 50.75cm

18 - 20"


67 - 75cm

26.5 - 29.5"

48.25 - 53.25cm

19 - 21"

50.75 - 56cm

20 - 22"


75 - 81cm

29.5 - 32"

56 - 61cm

21 - 23"

53.25 - 58.5cm

22 - 24"

Do you have a question about this product or want to purchase it? No problem at all. Simply call us on 020 7720 2266 between 09:00 and 17:00 Monday to Friday. 

You can also email us with your question by using the form below. A member of our helpful Customer Care Team will respond to your enquiry personally as soon as they can.

Your Name: *
Your Email Address: *
Your Message: *
Please add the two numbers

To find out more information about the Donjoy Armor Professional Knee Brace with Fourcepoint or injuries that the support can help with, check out the following links:

Delivery - Free UK Mainland Delivery

This item is usually dispatched by 24 hour courier.

This item is usually dispatched the same day for next working day delivery when ordered before 2.00pm, Monday to Friday.

Please call our Health and Care Customer Care Team on 020 7720 2266 if you have any questions about the delivery of this item.

Customers who bought this item also bought:

Customer Reviews
Average Rating (16 Reviews):  
Write a Review and share your opinions!

Question to previous customers
Thursday, 24 May 2018  | 

I want to buy the Donjoy Armor but dont know if its short calf or standard calf. If anyone sees this comment can you kindly help me. Thanks

Was this helpful to you?  Yes  /  No

This review has not been appraised.


Hi Ian,

Thanks for leaving your question with us. I can confirm that the Donjoy Armor Professional Knee Brace with Fourcepoint features a short calf. Thanks again for getting into contact.

Best wishes,

Alex at Health and Care

Great knee brace for skiing
Sunday, 18 February 2018  | 

Had one of these for my right knee for 8 years and it’s been great for skiing. Final had to get one for my left knee. Fit is spot on. Service was great. Could have done with sending an email out saying it was coming but arrived in the 24 - 48 hours as promised. Looking forward to skiing next week.

Was this helpful to you?  Yes  /  No

2 of 2 people found this review helpful.

Great Brace
Friday, 26 January 2018  | 

I have completely torn my ACL in my right knee and was unable to walk without my knee giving way, I purchased this Donjoy Armor Knee Brace and can now walk freely without hyperextension and get back to the Gym to build muscle around my knee to help support it. Would highly recommend this knee brace. Fast next day delivery as well.

Was this helpful to you?  Yes  /  No

3 of 3 people found this review helpful.

everything was fine
Thursday, 30 November 2017  | 

Nice contact, fast delivery with tracking number, I would buy again.

Was this helpful to you?  Yes  /  No

2 of 3 people found this review helpful.

Great Product, Great Customer Service
Friday, 1 September 2017  | 

Second time purchasing a Donjoy, first time with Health and Care. It's a brilliant product that has only been improved. And despite making a colossal error on my part with the sizing, Health and Care managed to sort out a re-delivery very quickly.

Was this helpful to you?  Yes  /  No

2 of 3 people found this review helpful.


Hi Amber,

We're glad that you're happy with your product and with our service as well!

Best wishes,

Alex at Health and Care

Read all 16 customer reviews...

Health and Care
Health and Care
0 items - £0.00
Call the Team: 020 7720 2266