An inliner, for receiving filling material and for being introduced through an opening into a container wall of a transport container, the inliner including shaping rods configured to open with the inliner in the transport container in a direction radially outward of an axis in a manner of an umbrella when the inliner is introduced into the transport container and to close in a direction radially inward of the axis when the inliner is extracted, where the shaping rods are composed of a flexible, resilient material and, as a result of an internal stress, are transferable from a deformed position into a rest position corresponding to the open position of the inliner.