There are disclosed embodiments of a marking clip for marking garments which may be stacked flat on a surface. The marking clip is generally U-shaped with leg portions joined by a bight portion and is preferably molded of flexible, resilient, plastics material and bears repetitive indicia along the outer surface of the leg and bight portions. Two or more marking clips may be coupled to provide selected combinations. A label strip with respective indicia and with an RFID transponder and/or a machine-readable code can be adhesively adhered either directly to a garment across a fold or to the marking clip.