Anatomically engineered belt helps support weakened abdominal muscles to provide temporary relief from umbilical hernia pain and discomfort. Foam pad applies direct compression where you need it, and lightweight, ribbed fabric is comfortable to wear under or over clothing. Moisture-wicking nylon with adjustable hook & loop closure. Latex-free nylon, polyester and spandex. Made in USA. Choose: (measure fullest part of abdomen) M(33"-36"), L(37"-40"), XL(41"-44") or XXL(45"-48").