Abstract: A panel attachment that extends the size of diapers, other absorbent undergarments or non-absorbent garments to be worn by growing infants. The panel attachment can be attached to a disposable or reusable diaper, detached when the diaper is soiled and reattached to a replacement diaper. The panel attachment can also be attached to a diaper cover or similar garment to extend its use for growing infants. The panel attachment comprises a sheet or sheets of material corresponding to the specific sizes of diapers or other similar garments on the market with a plurality of fasteners such as adhesive tabs hook and loop material and snap fasteners, corresponding to the fasteners of the diapers or other garments. The panel attachment can be made adjustable in size by extending the width of the panel or increasing its length. The panel also has indicia to indicate where to attach the diaper to the panel to achieve a specific increment in length.