I have had a lot of knee issues. 20+ years ago I was in a car accident which injured my knee. I had a lateral release of my knee cap and a scope done. Then last year I had a meniscus tear and my knee cap was not in the right place so I had another surgery. After that I got extreme arthritis in my knee and had to have a total replacement. I love this product because even though my knee is so much better I can use this knee brace for long car rides or when I do a lot of walking. It is great I love that they have multiple sizes and I can adjust the tightness. I would recommend this product to anyone that has knee issues. Great quality and great price!!