The present invention relates to an infant or adult diaper. More specifically, the invention relates to an infant or adult diaper (10) having a longitudinal centerline (Y) and a lateral centerline (X) perpendicular to the longitudinal centerline (Y) The diaper (10) comprises a topsheet (22) and a backsheet (24) and an absorbent core (20) positioned therebetween and a first longitudinally extending elastic cuff (30a) and a second longitudinally extending elastic cuff And an elastic cuff extending in the longitudinal direction of the diaper, wherein the first and second elastic cuffs are positioned to face each other on both longitudinal sides of the topsheet, and the diaper (10) has a crotch region (B) positioned between a front region (A) and a back region (C), and first and second longitudinally extending elastic cuffs (30a, 30b ) Each have a crotch region (B ) positioned between a front region (A) and a rear region (C ), and each of these longitudinally extending elastic cuffs (30a, 30b) The region is positioned in each region of the diaper (10), and the first longitudinally extending elastic cuff (30a) and the second longitudinally extending elastic cuff (30b) each extend in the respective longitudinal direction A first longitudinally extending resilient cuff (30a) and a second longitudinally extending resilient cuff (30a) having proximal edges (32a, 32b) that are attached to the diaper, (30b) each have a distal edge (34a, 34b) forming at least the free flaps (38a, 38b) without adhering the crotch region (B ) to the diaper (10), and the diaper ) Comprises a transverse separator (70) attached to a first longitudinally extending elastic cuff (30a) and a second longitudinally extending elastic cuff (30b), at least one longitudinal direction Each of the elastic cuffs (30a, 30b) extending in the first longitudinal direction has a distance to the longitudinal centerline (Y) at each point of the longitudinal centerline (Y) and extends at least in the first longitudinal
