An underwear-style worn article having a stomach-side section (21), a crotch section (13), a back-side section (23), and side-sealing sections (25) obtained by joining the lateral edge sections (21A, 21B) of the stomach-side section (21) and the lateral edge sections (23A, 23B) of the back-side section (23), wherein: the stomach-side section (21) and the back-side section (23) have an exterior part (11) positioned thereon which is obtained by layering a first sheet material (33) and a second sheet material (31) the exterior part (11) is stretchable in the widthwise direction the first sheet material (33) has a slit region (71) in which a plurality of slits (38) are arranged in the head-to-foot direction and the slit region (71) has a sequence arranged with an interval interposed therebetween in the widthwise direction of the first sheet material (33).
