A pull-on disposable wearing article having a longitudinal direction, a transverse direction, a skin-facing surface and a non-skin-facing surface, and comprising a front waist region, a rear waist region, a crotch region extending between the front and rear waist regions (14, 15), an elastic front waist panel defining the front waist region, an elastic rear waist panel defining the rear waist region, a crotch panel defining the crotch region and an absorbent structure attached to the skin-facing surface of the crotch panel and extending across the crotch region into the front and rear waist regions, wherein the front waist region has an outer end portion in the longitudinal direction in which first waist outer end elastic elements are arranged, an inner end portion in the longitudinal direction in which first waist inner end elastic elements are arranged and an intermediate portion defined between the outer and inner end portions (35, 36), and the rear waist region has an outer end portion in the longitudinal direction in which second waist outer end elastic elements are arranged, an inner end portion in the longitudinal direction in which second waist inner end elastic elements are arranged and an intermediate portion defined between the outer and inner end portions (38,39), and elastic waist interior layers (24,25) are respectively arranged in the intermediate portions (37,40), which are free from the inner and outer end elastic members, the elastic front and rear waist panels (18, 19) respectively have elastic regions defined on outer sides in the transverse direction of front and rear end portions (54, 55) of the absorbent structure in which the first waist inner end elastic elements and the second waist inner end elastic elements are present and inelastic regions defined in a region in which the absorbent structure is present and the first waist inner end elastic elements and the second waist inner end elastic elements are not present; the crotch panel has a pair of elastic side flaps located outside both side edges of the absorbent structure as viewed in the transverse direction and extending in the longitudinal direction; and each of the elastic side flaps has front and rear end portions fixed to the front and rear waist regions (14, 15) so as to extend outward in the transverse direction, an inelastic region in which leg elastic elements are not present is defined outside a respective one of the side edges of the absorbent structure as viewed in the transverse direction, and an elastic region in which the leg elastic elements are present is defined outward of the inelastic region as viewed in the transverse direction; characterised in that a ratio of a dimension in the transverse direction of the crotch panel versus a dimension in the transverse direction of the front and rear waist regions is in a range of 55 to 70%; the first waist inner end elastic elements intersect with both side edge portions of the absorbent structure whilst the second waist inner end elastic elements do not intersect with the absorbent structure; a ratio of a dimension in the transverse direction of the inelastic region versus a dimension in the transverse direction of the respective elastic side flaps is in a range of 22 to 56%; and a dimension in the transverse direction of the inelastic region is in a range of 10 to 25 mm and a dimension in the transverse direction of the elastic region is in a range of 25 to 35 mm.