PROBLEM TO BE SOLVED: To provide a disposable pants-type wearing article including size adjustment means capable of being relatively simply operated with one hand.SOLUTION: Size adjustment means 28 includes a guide member 27 having a folding guide edge part 80a capable of contacting the folded portion of a fixing band 26 having length and width directions when the fixing band is folded. The fixing band includes inner and outer surfaces facing a clothing facing surface of a diaper body 20 a proximal part 74 fastened to the clothing facing surface and a fastened area 76 arranged on the external surface of a pinchable distal part 75 positioned on the opposite side to the proximal part in the length direction, and detachably fastened to at least one side of the clothing facing surface and the external surface of the fastening band 26. The guide member extends in the width direction of the fixing band on the outside of the external surface both portions over the fixing band are fastened to the clothing facing surface and the folding guide edge part extends in the width direction of the fixing band between the proximal part and the distal part. At least one part of a fastened part 79 of the clothing facing surface of the guide member, and the proximal part of the fixing band is positioned on one of a front area 20A and a back area 20B.COPYRIGHT: (C)2015,JPO&INPIT【課題】片手で比較的に簡易に操作できるサイズ調整手段を備える使い捨てのパンツ型着用物品の提供。【解決手段】サイズ調整手段28は、長さ、幅方向を有する止着バンド26を折り返すと止着バンドの折曲部位に当接可能な折り返し案内縁部80aを有する案内部材27と止着バンドはおむつ本体20の着衣対向面と対向する内外面と、着衣対向面に固定された近位部74と、長さ方向の近位部の反対側に位置する摘持可能な遠位部75の外面に配置されて着衣対向面及び止着バンド26の外面の少なくとも一方に離脱可能に止着される止着域76を有する。案内部材は外面外側で止着バンドを幅方向に延び、止着バンドを越えた両部位が着衣対向面に固定され、折り返し案内縁部が近位部と遠位部間で止着バンドの幅方向へ延びている。案内部材の着衣対向面の固定部79と止着バンドの近位部の少なくとも一部が、前方域20A及び後方域20Bのいずれか一方に共に位置する。【選択図】図1