A diaper (1) is provided with an absorbent body (2) and side panels (3). The side panels (3) each have first and second panel sheets (31, 32), and an elastic member (33). At least the first panel sheet (31) has laminated structure portions (31A, 31B) in which the end on the absorbent body (2) side or the end on the distal end side of the side panel (3) folds back to the inside. Interlayer adhesive layers (31a, 31b) are formed in the laminated structure portions (31A, 31B) by applying an adhesive between the first panel sheet (31), which faces itself due to being folded back. The interlayer adhesive layers (31a, 31b) have extended adhesive layers (31a, 31b) that go beyond the laminated structure portions (31A, 31B), and extend toward the center of each side panel (3) in the width direction (X).本發明之尿布1具備吸收性本體2與側片3。側片3具有第1及第2側片片材31、32及彈性構件33。至少第1側片片材31具有吸收性本體2側之端部或側片3之前端部側之端部向內側折回之積層構造部分31A、31B。於積層構造部分31A、31B,對藉由折回而對向之第1側片片材31間施加接著劑而形成有層間接著劑層31a、31b。層間接著劑層31a、31b具有越過積層構造部分31A、31B並朝向側片3之寬度方向X之中央側延出之延出接著劑層31a、31b。2‧‧‧吸收性本體3‧‧‧側片3a‧‧‧側片之前端部3b‧‧‧基端部4‧‧‧黏扣帶21‧‧‧肌膚側片材21a‧‧‧表面片材21b‧‧‧立體防護形成用片材22‧‧‧非肌膚側片材22a‧‧‧防漏片材22b‧‧‧外層不織布23‧‧‧吸收體25‧‧‧彈性構件31‧‧‧第1側片片材31a‧‧‧本體側層間接著劑層31b‧‧‧前端側層間接著劑層31a‧‧‧本體側延出接著劑層31b‧‧‧前端側延出接著劑層31A‧‧‧本體側積層構造部分31B‧‧‧前端側積層構造部分32‧‧‧第2側片片材33‧‧‧彈性構件35‧‧‧本體側接著劑層36‧‧‧前端側接著劑層37‧‧‧中間接著劑層38‧‧‧非接著區域41‧‧‧固定部42‧‧‧膠帶基材61‧‧‧外層接著劑層62‧‧‧下側接合部62a‧‧‧外表面側接著劑層65‧‧‧連接用接著劑層66‧‧‧上側接合部66a‧‧‧內表面側接著劑層68‧‧‧接著劑層69‧‧‧接著劑層P‧‧‧內表面Q‧‧‧外表面X‧‧‧寬度方向
