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).一種短褲型穿著用物品,其包括腹側部(21)、胯下部(13)及背側部(23),且包括腹側部(21)之側緣部(21A)、(21B)與背側部(23)之側緣部(23A)、(23B)接合而成之側封部(25),於腹側部(21)及背側部(23)配置有層疊第1薄片材與第2薄片材而成之外裝體(11),外裝體(11)於寬度方向具有伸縮性,於第1薄片材具有於身長方向配置有複數個狹縫部(38)之狹縫區域(71),且於第1薄片材之寬度方向具有狹縫區域(71)隔開間隔地並排之排列。10‧‧‧短褲型尿布11‧‧‧外裝體12‧‧‧腰部開口部13‧‧‧胯下部21‧‧‧腹側部21A、21B‧‧‧側緣部23‧‧‧背側部23A、23B‧‧‧側緣部25‧‧‧側封部33‧‧‧外層材(第1片材)35‧‧‧彈性體38‧‧‧狹縫部39‧‧‧帶部40‧‧‧吸收性本體71、71A‧‧‧狹縫區域72、72M、72S‧‧‧非狹縫區域X‧‧‧寬度方向Y‧‧‧身長方向
