A. This sports knee brace is designed for adults. It is a suitable companion for sports such as running, basketball, tennis, mountain climbing, volleyball, and badminton, and is applicable to scenarios like running and fitness. B. The main body of the knee brace is made of a combination of cowhide and velvet. This material combination can ensure durability and enhance wearing comfort. C. In terms of design, there are two options: a single - layer lightweight model and a double - layer reinforced model. The single - layer model is light and allows you to move freely during sports without any burden; the double - layer model provides stronger support to protect you during high - intensity sports. It comes in a one - size - fits - all specification, and both single and double packs can meet different usage needs. D. With its good design and materials, this knee brace can effectively absorb shock, provide all - around protection for your knees, and help prevent meniscus injuries, making your sports experience more worry - free and enjoyable. It is not only popular in China but also sells well in regions such as Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East. In addition, it has an authorized self - owned brand, and its quality is reliable.