Disposable article (1), such as a diaper having a longitudinal direction (L) and a transverse direction (T), which comprises a top sheet permeable to liquids (10), a backsheet impervious to liquids (30 ) and an absorbent core (20) located between the top sheet (10) and the backsheet (30), a front waist region (2), a rear waist region (3) and a crotch region (4) longitudinal side edges (5, 6), front waist end edge (7) and rear waist end edge (8) containment flaps (9) which are located parallel to the longitudinal axis (L) locking tabs (13) which are located in the rear waist region (3), leg elastic members (14) are located in longitudinal direction (L) next to the longitudinal edges (5, 6), further comprising an elastic web of material ( 40) arranged and attached between the topsheet (10) and the backsheet (30) being located in the rear waist region (3) parallel to the transverse axis (T) continuously and width between the two longitudinal edges (5 , 6), so that the longitudinal edges (40 and 42) of the web of elastic material (40) are positioned between the longitudinal edge (5, 6) and the leg elastic distal part of the leg elastic members (14) respective elastic elements being said legs (14) without adhering to the web of elastic material (40). Said disposable item (1), further comprising adjusting ears (11, 12) located on the side edges of the rear waist region, which includes a locking tab (13) and includes a web of elastic material (40) disposed between the topsheet (10) and the backsheet (30) being located in the rear waist region (3) and an elastic material laminated element (40) disposed between the topsheet (10) and the backsheet (30) being located in the front waist region (2).Articulo desechable (1), tal como un pañal, que tiene una dirección longitudinal (L) y una dirección transversal (T), el cual comprende una lamina superior permeable a los líquidos (10), una lamina posterior impermeable al los líquidos (30) y un núcleo absorbente (20) ubicado entre la
