Ring Hug is a new product called "Supportermer," which combines a supporter and leg warmers. It's a new concept item that combines the fit of a supporter with the warmth of leg warmers. You can wear it on areas you're concerned about, such as your knees, calves, and ankles. The patented "Ring-Layered Structure" knitting method provides a perfect fit for joints and prevents slippage. The stretchy, ring-shaped knit provides a comfortable, hugging support sensation. It uses germanium fiber, which is expected to have far-infrared effects. For various foot problems such as joint pain, tired feet from standing work, severe leg fatigue, swelling, coldness, and waking up at night with leg cramps... Please give it a try for these and other concerns. Black M-L size Set of 2 Although it is unused, please refrain from purchasing if you are concerned about minor details due to home storage.