Knee braces are supportive devices designed to stabilize and protect the knee joint. They are commonly used by athletes, individuals recovering from injuries, or those with chronic knee conditions. Knee braces can help reduce pain, prevent further injury, and improve mobility during physical activities. There are various types of knee braces, including functional braces for support during sports, rehabilitation braces for recovery after surgery, and preventive braces to avoid injuries. These braces can be made from materials like neoprene or metal, and they come in different sizes to ensure a proper fit for the user.