Abstract: A disposable diaper substantially rectangular in shape and comprising in order, a water pervious layer or face sheet, an absorbent pad layer and a water impervious layer, said diaper having a pair of abutting, centrally located longitudinal panels defined by three substantially parallel longitudinal folds extending the length of said diaper. A flap portion is adjacent each of the panels. Adhesive means are positioned on each of the panels approximately centrally located longitudinally thereof for securing the longitudinal edges of the diaper in the crotch portion. The diaper in the folded condition has an "hour-glass" or "M" shaped configuration providing improved fit and particularly in the crotch area. The lateral edges of the diaper lie flat when the diaper is in open position, greatly facilitating manual manipulation of the diaper when applied to an infant. The diaper has significantly improved efficiency and appearance.

Abstract: A disposable diaper comprising in order:A water-pervious layer;A spongy, resilient and compressible hydrophobic fibrous layer;An absorbent core; andA water impervious layer,Wherein said hydrophobic fibrous layer has a density of from about 0.01gm/cc to 0.03gm/cc and comprises non-woven, hydrophobic fibers having an average length of from about 1/4 in. to 31/2 , said fibers being bonded together at at least a substantial number of their points of contact. The hydrophobic fibrous layer is pervious to fluids in the uncompressed condition; however, when compressed, as by the bodily weight of an infant clothed with the diaper, the layer becomes impervious to fluids, the compressed fibers intermeshing to form a seal or barrier.