TONNEAU COVER

A tonneau cover includes a sheet-shaped member, a hemming member sewn on an outer peripheral edge portion of the sheet-shaped member and forming a core material housing space, a loop-shaped core material housed in the core material housing space, and a frame. The frame includes a first divided frame member and a second divided frame member. At least one of the first divided frame member and the second divided frame member is formed with an edge housing portion and is provided with a contact portion. The edge housing portion forms an edge housing space. The edge housing space houses the outer peripheral edge portion, the hemming member, and the core material. The contact portion protrudes into the edge housing space to be in contact with a surface of the core material facing the sheet-shaped member via the hemming member.