Disposable diaper

A disposable diaper comprising a liquid permeable topsheet, a liquid impermeable backsheet and three liquid retentive absorbent members interposed between the topsheet and the backsheet,

• said three absorbent members being disposed in series in the direction of from the rear portion, through the crotch portion, to the front portion of the diaper, and wherein the length of the three absorbent members descends in the order of the rear portion absorbent member, the front portion absorbent member and the crotch portion absorbent member,
• elastic members being disposed in a stretched state on both sides of said series of said three absorbent members, such that when said diaper is worn, the elastic members are disposed on the leg portions around the wearer's legs, and wherein the elastic members are disposed longitudinally on both lateral sides of the disposable diaper from the rear portion absorbent member to the front portion absorbent member,
• said absorbent members being arranged such that a gap, wherein said gap extends in a width direction of said diaper, is produced between any adjacent two of said three absorbent members when the diaper is stretched flat and that any adjacent two of said three absorbent members come into close contact with each other when the diaper is worn;
• and
• wherein a boundary between the absorbent members in the rear and crotch portions is positioned at about the middle of the diaper length, and a boundary between the absorbent members in the crotch portion and front portion is slightly before the middle of the diaper length and toward the front of the diaper.