An implantable prosthetic device adapted for use in repairing a hernia defect includes at least one body made from a biocompatible textile material. The body is provided with a first section and a second section inverted into the first section such that the second section is radially surrounded by the first section. The second section is movably connected to the first section such that the body is expandable or collapsible in a radial direction so as to conform to the size and shape of a hernia defect.