To provide a more flexible feel when a product in a natural length state is touched by hand. SOLUTION: Two sheet layers 12S extending in an expansion / contraction direction and an orthogonal direction orthogonal thereto, and a plurality of sheets extending along the expansion / contraction direction arranged at an interval in the orthogonal direction between the sheet layers 12S. The elastic elastic member 19 has an elongated elastic expansion / contraction member 19, and both ends of the elastic expansion / contraction direction are fixed end portions 19f fixed to the two sheet layers 12S. The space between the two sheet layers 12S is an unfixed free part 19m, and the two sheet layers 12S are joined in a free part area FA determined as an area between the free parts 19m adjacent to each other in the orthogonal direction. Thus, in the state in which the sheet joining portion 20 is formed and the two sheet layers 12S are contracted in accordance with the contraction of the elastic elastic member 19, the two sheet layers 12S are wavy so as to follow each other. object It is a telescopic structure of. [Selection] Figure 23【課題】自然長状態の製品を手で触ったときに、より柔軟な感触が得られるようにする。【解決手段】伸縮方向及びこれと直交する直交方向に延びる２枚のシート層１２Ｓと、これらシート層１２Ｓの間に直交方向に間隔を空けて配置された、伸縮方向に沿って延びる複数本の細長状の弾性伸縮部材１９とを有し、弾性伸縮部材１９は、その伸縮方向両端部が２枚のシート層１２Ｓに固定されてなる固定端部１９ｆとされるとともに、これら固定端部１９ｆの間は２枚のシート層１２Ｓに非固定の自由部１９ｍとされており、直交方向に隣接する自由部１９ｍの間の領域として定まる自由部間領域ＦＡで、２枚のシート層１２Ｓが接合されることによりシート接合部２０が形成されており、弾性伸縮部材１９の収縮に伴い２枚のシート層１２Ｓが収縮した状態では、２枚のシート層１２Ｓが互いに沿うような波状をなす、吸収性物品の伸縮構造である。【選択図】図２３
