Provided is a laminate that includes a thin-film structure having a fine concave-convex structure at its surface, can be distributed on the market so that the thin-film structure is usable by a customer without staining or fracturing, and can be prevented from degradation even after storage. A laminate comprises a thin-film structure and holding films, wherein a first holding film is laminated on one surface of the thin-film structure and a second holding film is laminated on the other surface of the thin-film structure, the thin-film structure has fine concave-convex structures at both surfaces, and 0