Abstract: Disposable one-piece undergarments, each comprising a generally rectangularly shaped sheet of flexible light weight material, first and second recesses positioned in opposite edges of the sheet complementarily to each other, and bands of connecting material extending along edges of the sheet, each of the bands of connecting material having a plurality of bands of strip-away material thereon, whereby the edges of the garments may be joined together by selective removal of strip-away bands thereby to provide the garments with the size desired.