Prevents sports and work related ankle injury Give a proper support and compressionRelieve pain and swelling Speeds up recovery Ideal to prevent and support the sports and works related ankle injury. This product is made of circular knitting construction. It can provide a proper compression and good stabilization for joint to accelerate the blood circulation. The knitting construction can provide free ventilation and four-way stretch can help to easily put on and off. Prolonged wearing can promote blood circulation, reduces pain and swelling, speeds up recovery, also prevent injury as well.