The present invention addresses the problem of preventing a deterioration in fit in a part including a crossing position of front leg-surrounding resilient members and rear leg-surrounding resilient members, while the front leg-surrounding resilient members and the rear leg-surrounding resilient members cross one another and are effectively continuous along a leg opening. The abovementioned problem is resolved by means of a trunks type disposable diaper in which front leg-surrounding resilient members (27) and rear leg-surrounding resilient members (26) are attached on both sides in a width direction (WD) of an intermediate region (22), which is a region between an edge (29) of one leg opening and the edge (29) of the other leg opening, in a pattern in which at least one of the front leg-surrounding resilient members (27) and at least one of the rear leg-surrounding resilient members (26) cross one another, wherein in the intermediate region (22) an inner body joining portion (18), which is a joining region of an outer body (20) and an inner body (10), is only provided closer to the center, in the width direction, than a crossing position (C1) of the front leg-surrounding resilient members (27) and the rear leg-surrounding resilient members (26), on both sides in the width direction.Le problème décrit par la présente invention est de prévenir une détérioration de l'ajustement dans une partie comprenant une position de croisement d'éléments élastiques entourant les jambes avant et d'éléments élastiques entourant les jambes arrière, les éléments élastiques entourant les jambes avant et les éléments élastiques entourant les jambes arrière se croisant et étant efficacement continus le long d'une ouverture de jambe. Le problème mentionné ci-dessus est résolu au moyen d'une couche jetable de type culotte dans laquelle des éléments élastiques entourant les jambes avant (27) et des éléments élastiques entourant les jambes arrière (26) sont fixés des deux côtés dans une dire
