An endoscope 10 includes a flexible portion 11C, a surface of which is covered by an outer covering 50, the outer covering 50 including a resin layer 51 as an outermost layer and a laminated barrier film 52 that is arranged on an inner side of the resin layer 51, and the laminated barrier film 52 including a first barrier layer 53 made from a metal oxide, and a second barrier layer 54 made from a metal that is arranged on an inner side of the first barrier layer 53.