A harness comprises a connector body, a cable and a cable-holding portion which holds the cable. The connector body comprises a base portion. The cable is connected to the connector body. The cable has an end portion received in the base portion and a main portion extending rearward from the end portion. The cable-holding portion is formed with a recessed portion which opens at least downward in the upper-lower direction (Z-direction). The base portion has an interference portion. The recessed portion and the interference portion are located at opposite sides of the harness, respectively, in the lateral direction (Y-direction). The recessed portion is, at least in part, located at a position same as that of the interference portion in the front-rear direction (X-direction). The recessed portion is, at least in part, located at a position same as that of the interference portion in the upper-lower direction.