The present invention aims to provide a wearing article improved to prevent an undesirable step from being formed due to downward displacement of a front end flap of an absorbent chassis during use of the diaper, to prevent body waste from leaking out and to assure a good appearance.At least the front waist region 213 of the front and rear waist regions 213, 214 includes elasticized regions 225, 226, 227 extending at least in the transverse direction Y, wherein the elasticized regions 225, 226, 227 comprise a first elasticized region 225 defined between a waist-opening peripheral edge 223a and the vicinity of a front end flap of the absorbent chassis 212 so as to extend in the transverse direction Y, a second elasticized regions 226 defined adjacent the first elasticized region 225 so as to extend in the transverse direction Y and a pair of third elasticized regions 227 defined adjacent the second elasticized region 226 and spaced from and opposed to in the transverse direction Y on both sides of a non-elasticized region 228A formed in a transverse middle of the front waist region 213 wherein the second elasticized region 226 extends across the front flap of the absorbent chassis 212.
