Absorbent incontinence diaper (2) with a rear zone (8), a front zone (6) and a crotch zone (12) located between them, and with first and second side edges (5) and with a main part ( 4) provided with an inner side turned towards the body during the use of the diaper and an outer side away from the body, wherein the main part (4) comprises a suction body (14) and a backsheet (10) on the side from the suction body (14) away from the body, and where the suction body (14) has a smaller width than that of the backsheet (10), and with lateral parts (16, 17) connected to the edges first and second sides (5), wherein the extension of a side part (16, 17) connected to the main part (4), in the deployed state in the transverse direction Q of the incontinence diaper (2) to beyond the lateral edge (5) of the main part (4), amounts to at least 10 cm, where the incontinence diaper absorbent (2) has four discrete side parts (16, 17) not directly connected to each other, such that a side part (16) is connected to each of both side edges of the front area (6) and a part Additional side (17) is connected to each of both side edges of the rear area (8), and where the side parts (16, 17) have an inner side and an outer side, and where the side parts (17 ) in the rear area they have closing means (32) with mechanical closing aids (31) and where, to perform the specified fixation of the diaper to a person's body, the closing means (32) can be fixed so at least zonally releasable both on the outer side of the main part (4) and on the outer side of the side parts (16) in the front area (6), and where the clamping forces between the closing means (32 ) and the outer side of the main part, obtained as clamping forces on the abdomen according to the test method described in the report, they are smaller than the clamping forces between the closing means (32) and the outer side of the side parts (16) in the front area (6), obtained as clamping forces on the abdomen according to the test method d