The product is very good in terms of support and has very good build quality,
BUT..............
At the point where the part that holds the thumb is supported on the rest of the brace, externally you will notice that it has a thick protruding circular seam. The side blade that keeps the thumb immobilized is located in a pocket that is sewn outside of the brace AND PASSES OVER THIS SEAM, causing it to press the seam inward very strongly. If you feel inside before wearing it, you will see a large bulge where our thumb connects to the rest of the wrist. So when you wear the brace and stabilize it, you immediately feel discomfort, and after 10 minutes it becomes UNBEARABLE PAIN because it presses that bulge too much and it is unbearable. I even tried putting makeshift "cushions" inside, but without any result.
I asked an orthopedic specialist if I am not applying it correctly or if I didn't order the correct size. The size and the way of application were correct.
In the end, I had to cut a section internally in order to be able to use it.
Honestly, I am surprised that no one noticed this SO IMPORTANT DETAIL in an otherwise commendable product???
WHAT A SHAME.....

I bought it after a doctor's recommendation due to tendonitis in my wrist. It helped me a lot with the stiffness it provides to recover faster (in combination with physiotherapy). Highly recommended!