Good construction quality, very nice feeling from the fins, with one major drawback, very tight on the calf resulting in pain in the calf muscles that persists for hours afterwards.

It keeps the knee stable and allows you to exercise without having your mind on your knee. Personally, it has saved me in all three sports that I use it for (basketball, volleyball, soccer).

Very good knee brace with bars and silicone. In gray color, it maintains its elasticity. I had bought one for testing and then bought another one.

It does a very good job. After 5 days of use for approximately 10-14 hours per day, I noticed a difference in pain.
Pay attention to the sizes because some stores do not correctly specify which circumference they mean. Some refer to knee circumference, others to thigh, etc.
So, I am writing below the description as I found it on the packaging:
Small: 37-43 cm
Medium: 43-49 cm
Large: 49-55 cm
Extra Large: 55-61 cm
The sizes refer to the circumference of the thigh, measuring 15 centimeters from the knee (this is exactly what the packaging says).