A diaper having a main part comprising a front area, a rear area and a crotch area therebetween, wherein the main part comprises an absorbent core, and with rear side sections joined on both sides to the rear area and front side sections joined on both sides to the front area which extend in the transverse direction past lateral front and rear longitudinal edges of the main part, connect the front area and the rear area, wherein, at least on the side facing the crotch area, the front and rear side sections； are designed in such a fashion that they extend at an inclination with respect to the longitudinal direction or are curved for forming leg opening areas, and the front and rear side sections of the front area and rear area differ from each other with respect to at least one primary property.
