It is the best for someone who has a knee problem and wants to immobilize their leg. It has a perfect fit and depending on how slim or thick the leg is, you can adjust it. You can also adjust how much you want the knee to bend, how much you want it to open, or adjust it to be stable at any point you want. These settings can be easily changed. It is easy to apply, you can easily apply it to your leg by yourself. It also has a belt that you put around your waist to keep it stable when you walk for a while. I have tried others, but this one is the best. Its weight is fine, and it can be made bigger if someone is very tall. Excellent for me personally, perfect.

The price of the product is extremely low for what it offers.
It has 6 fastening straps, 3 for the hip and 3 for the knee. Adjustable extension and flexion limits on both sides. Independent telescopic adjustment for both the hip and the knee. A total of 8 adjustment buttons.
It has a very useful waist belt to prevent the mechanism from falling during walking.
The mechanism is metallic, and the plastic covers shown in the photo are mainly for the straps' nesting.
Applying this brace is not an easy task at all. The person applying it for the first time must have mechanical perception.
The instructions are in Greek, but they are concise, without images, and do not help with the placement. It would be much more useful to have a video tutorial for this specific brace.
The brace's pads consist of 4 separate sections that do not have any numbering or markings to help with their placement in the correct order.
However, once everything is placed correctly, the inner Velcro will keep them in position.
From then on, in everyday use, you need to fasten 4 Velcro straps of the pads, 6 straps, and the waist belt.
I recommend placing the brace each time with a bent leg to fit the knee's correct height.
After placing the pads, first put on the middle hip strap, then one for the knee, and then all the others.
The pads cover a large area of the leg, and I do not know how tolerable they will be during the Greek summer.
I recommend purchasing it, provided that you have someone to help you with the initial application. Someone who sees 5 and understands 10!