A diaper (1) includes elastic front and rear waist panels (20, 30) respectively defining front and rear waist regions (12, 13), a crotch panel (40) defining a crotch region (14) and attached to the front and rear waist panels (20, 30) and an absorbent structure (50) located on an interior side of the crotch panel (40) and extending in a longitudinal direction (Y). A dimension (L1) in a longitudinal direction (Y) of the crotch panel (40) is smaller than a dimension (L2) of the absorbent structure (50) and front and rear end portions (50A, 50B) of the absorbent structure (50) lie outboard of front and rear end portions (40A, 40B) of the crotch panel (40) as viewed in a longitudinal direction (Y). A dimension (W1) in a transverse direction (X) of the crotch panel (40) is larger than a dimension (W2) of the absorbent structure (50) and lateral edge portions (40C) of the crotch region (40) extend outwardly in the transverse direction (X) beyond lateral edge portions (50C) of the absorbent structure (50).本發明之課題,係在提供一種可以利用構成胯部區域之胯部薄片體,來抑制構成前後腰部區域之前後腰部薄片體的通氣性降低之用後即棄式穿著用物品。本發明之解決手段的用後即棄式紙尿布(1),係包含:用以區劃前後腰部區域(12、13)之彈性前後腰部薄片體(20、30);用以區劃胯部區域(14)而裝設於前後腰部薄片體(20、30)之肌膚對向面側的胯部薄片體(40);以及配置於胯部薄片體(40)內側並朝縱向(Y)延伸之吸收體(50)。胯部薄片體(40)之縱向(Y)的尺寸(L1),係小於吸收體(50)之尺寸(L2),吸收體(50)之前後端緣部(50A、50B),係位於比胯部薄片體(40)之前後端緣部(40A、40B)更靠近縱向(Y)之外側的位置。胯部薄片體(40)之橫向(X)的尺寸(W1),係大於吸收體(50)之尺寸(W2),胯部薄片體(40)之兩側緣部(40C),係比吸收體(50)之兩側緣部(50C)更朝橫向(X)之外側延伸而出。X‧‧‧橫向Y‧‧‧縱向2‧‧‧虛擬縱中心線3‧‧‧虛擬橫中心線12‧‧‧前腰部區域13‧‧‧後腰部區域14‧‧‧胯部區域20‧‧‧前腰部薄片體20A‧‧‧內端緣20B‧‧‧外端緣20C‧‧‧兩側緣21‧‧‧內層薄片22‧‧‧外層薄片22A‧‧‧彎折部位22B‧‧‧延伸而出部位23‧‧‧圖形顯示膜24‧‧‧第1彈性體25‧‧‧固定薄片26‧‧‧第3彈性體30‧‧‧後腰部薄片體30A‧‧‧內端緣30B‧‧‧外端緣30C‧‧‧兩側緣31‧‧‧內層薄片32‧‧‧外層薄片32A‧‧‧彎折部位32B‧‧‧延伸而出部位33‧‧‧圖形顯示膜34‧‧‧第2彈性體35‧‧‧固定薄片36‧‧‧第4彈性體40‧‧‧胯部薄片體40A‧‧‧前端緣部40B‧‧‧後端緣部40C‧‧‧兩側緣部42‧‧‧腿彈性化薄片42C‧‧‧外側緣部45‧‧‧彎折部位46‧‧‧彈性體46A‧‧‧內側彈性體46B‧‧‧外側彈性體46C‧‧‧中間彈性體50‧‧‧吸收體50A‧‧‧前端緣部50B‧‧‧後端緣部50C‧‧‧兩側緣部51‧‧‧吸收性芯51A‧‧‧前端緣部51B‧‧‧後端緣部52‧‧‧身體側襯墊52A‧‧‧前端緣部52B‧‧‧後端緣部61‧‧‧內側區域62‧‧‧內側區域63‧‧‧外側區域64‧‧‧外側區域65‧‧‧中間區域66‧‧‧中間區域
