Thigh high compression socks extend all the way from toes to the middle of the thigh. The long length helps promote circulation throughout the entire leg rather than treating just the feet or calves. If you have swelling above the knee, shorter compression socks will not properly address the problem. Thigh high compression stockings are often used by people who are recovering from surgery or have limited mobility. They increase circulation, which helps prevent blood clots and varicose veins. Although pantyhose can treat similar issues, many people prefer thigh high stockings since they aren't binding at the waistband. Thigh high compression stockings are available in closed toe and open toe designs to suit your preference. Read our compression stocking buying guide to learn more about the various levels of compression and how to take proper measurements.