A disposable diaper includes a body fluid absorbing zone extending over a crotch region further into front and rear waist regions, side flaps extending in a longitudinal direction outside transversely opposite side edges of the zone, and end flaps extending in a transverse direction outside longitudinally opposite ends of the zone. The side flaps in the front waist region are formed from a composite nonwoven fabric composed of a first fibrous nonwoven fabric facing away from the wearers skin and a second fibrous nonwoven fabric laminated on the first fibrous nonwoven fabric and facing the wearers skin. The first fibrous nonwoven fabric has a kinetic friction coefficient higher than a kinetic friction coefficient of the second fibrous nonwoven fabric.
