TURBOCell Premium Belt Core The TurboCell belt, designed by Hiroyuki Hanaya, the chief director of Balance Seikotsuin, with added core support function, has further evolved. Successfully lightened and improved the fit. It warms the abdomen and helps to tighten the core while aiming for a shapely figure. ● Size: M-L…Waist 64-77cm I purchased this, but I made a mistake with the size and it was too tight, so I only used it for a short time, 1-2 times, and then stored it at home. The Velcro part is also clean. There are fold marks because it was folded during storage.