A diaper (11) is provided with an elastic abdomen side waistline part (2) a back side waistline part (3) and an absorptive body (4). The abdomen side waistline part (2) has a cutout (20) at the center part in the width direction of an upper end region and the number of sheets of members that are stacked in the abdomen side waistline part (2) at least at a part of an edge region (20a) including an outer edge (200) of the cutout (20) is greater than the number of sheets of members that are stacked in the abdomen side waistline part (2) at a leg line peripheral region (2a) which is a region positioned at both sides in the width direction of the absorptive body (4) within the lower end region of the abdomen side waistline part (2).
