Abstract: An integral, one-piece, resiliently flexible, planar, reusable, programmable radio frequency identification (RFID) luggage tag blank has a planar flexible sheet core of at least first and second microporous polymer material strips fixedly and permanently joined together completely surrounding an RFID transponder assembly, the transponder assembly collapsing the microporosity of the core strip material enough to maintain an essentially uniform core, the transponder assembly including non-volatile memory containing a non-alterable permanent unique code assigned to the transponder assembly and space to receive externally programmable information; and a first cover strip selected to receive a dye diffusion thermal transfer image and secured to the first major outer side of the core.