A knee brace is a medical device designed to support and stabilize the knee joint. Commonly used by athletes and individuals with knee injuries or conditions such as arthritis, knee braces help reduce pain, improve function, and prevent further injury. They come in various forms, including sleeves, straps, and hinged braces, each tailored for specific needs. For instance, prophylactic braces are used to prevent injuries during high-risk activities, while rehabilitative braces support the knee during recovery post-surgery or injury. Functional braces provide stability for already injured knees. Made from materials like neoprene, elastic, and metal, knee braces offer varying degrees of support and flexibility. Consulting with a healthcare professional is recommended to select the appropriate type and fit, ensuring optimal benefits and preventing potential misuse.