Absorbent article with fusion bonded side seams

A pull-on garment comprising an outer cover assembly defining the exterior surface of the garment, the outer cover assembly having a front body portion and a rear body portion, the front body portion and the rear body portion of the outer cover assembly being connected to each other along their laterally opposite side edges to form a pair of side seams, a waist opening, and a pair of leg openings,

• the side seams each having:
• a sealed edge portion where the edge of the front body portion and the edge of the rear body portion of the outer cover assembly are bonded to each other at a continuous linear fusion bond extending in the longitudinal direction of the side seam;
• and, in part, a non-sealed portion where the edge of the front body portion and the edge of the rear body portion of the outer cover assembly face to each other in a non-bonded relationship,
• in a cross-sectional view taken in a direction perpendicular to the extending direction of the side seam, the sealed edge portion of each side seam having the fusion bond which is formed along its outer edge and at which the sheets constituting the outer cover assembly are bonded together, wherein the sealed edge portion of each side seam has an exposed edge which is concave toward an inner side of the pull-on garment and has the fusion bond at which the sheets constituting the outer cover assembly are bonded together along and inward of the exposed edge face, and the fusion bond having a larger width at the middle thereof than at both ends thereof in the thickness direction of the outer cover assembly.