Abstract: An optical cable comprises an extruded elongate body of rubber or plastics material having at least one bore extending lengthwise in the body, and, embedded in the extruded elongate body and arranged side-by-side with the bore or bores, at least one separate elongate reinforcing member, at least one substantially flat flexible support member, e.g. a flexible tape or a pair of overlying flexible tapes, is housed loosely in the bore or in at least one of the bores and, viewed in transverse cross section, the tape or at least one of the tapes is corrugated so that it has a plurality of troughs extending along its length, at least two optical bundles or optical fibers are secured in at least two of the troughs.