The present invention provides a flexible tube having a cylindrical flexible tube base that has flexibility and a resin layer that coats the flexible tube base, in which the resin layer is configured by at least two layers of a first layer that contains a specific resin and a second layer that contains a specific resin, or in which the resin layer is a single layer or multiple layers of two or more layers, and a layer A that is any of the resin layers includes polyester elastomers, and, hindered phenol compounds or hindered amine compounds.