Adult diaper, which has a longitudinal direction (1) and a transverse direction (t), whose chassis (50) is rectangular in shape with an extracted longitudinal section (55) in the crotch area (4), longitudinal side edges (5 , 6), front waist extreme edge (7) and rear waist extreme edge (8), comprising a liquid-permeable upper blade (10), a liquid-impermeable rear blade (30), and an absorbent core ( 20) located between the upper blade (10) and the posterior blade (30), a front waist region (2), a rear waist region (3) and a crotch region (4)； containment barriers (9) which are located parallel to the longitudinal axis (1), elasticated leg members (14) arranged in the longitudinal direction (l) and adjusting ears (11,12) located on both sides of the front waist regions (2) and rear (3), said adjusting ears have a section (11a, 11b) adjacent the proximal edge of each adjusting ear disposed between a section of the upper blade (10) and the posterior blade (30), whereby each adjusting ear (11,12) is attached to the chassis (50), and two locking tabs (13) which are located at each distal edge of the rear waist section adjusting ears (3), with whereas when the diaper is in its folded, ready-to-pack state, the adjusting ears (11,12) have a unique fold to the inside of the chassis (50) and cover the surfaces of a portion of the upper blade ( 10) and a portion of the containment barrier (9), with the adjusting ears remaining s (11,12) joined to said surfaces by means of a thermoseal joint, the design of which joints are symmetrically distributed and arranged over the ears, leaving zones corresponding to the clamping tongues located free of joining points. in the adjusting ears (12) of the rear waist region.fralda para adulto, que possui uma direção longitudinal (1) e uma direção transversal (t), cujo chassi (50) é de forma retangular com uma seção longitudinal extraída (55) na zona de entrepernas (4), bordas laterais longitudinais (5, 6), borda extrema de cintura dianteira (7)
