Disposable wearing article

A disposable wearing article having a longitudinal direction and a transverse direction, the article comprising:

• a skin-facing side;
• a non-skin-facing side opposite to the skin-facing side;
• a chassis including a front waist region, a rear waist region and a crotch region extending between the front and rear waist regions;
• an absorbent structure lying at least in the crotch region;
• a waist-opening defined by front and rear ends of the chassis;
• and
• leg-openings defined by lateral edges of the chassis, wherein a plurality of front and rear waist elastics extending in the transverse direction and spaced apart from each other in the longitudinal direction are contractibly attached under tension to the front and rear waist regions, wherein:
• the chassis includes a plurality of sheets layered one another;
• at least one of the front and rear waist regions is formed with a variable stiffness region including a low stiffness sub-region extending in the transverse direction and a pair of high stiffness sub-regions being adjacent to both sides of the low stiffness sub-regions as viewed in the longitudinal direction, wherein the variable stiffness region is segmented by a pair of the waist elastics;
• and
• the number of the sheets overlapped to form the low stiffness sub-region is fewer than the number of the sheets to form the respective high stiffness sub-regions.