UNDERPANTS-TYPE DISPOSABLE DIAPER

The present invention is intended to provide the advantages of forming the leg gathers with the liquid impervious film that allow reduction of the used amount of the non-woven fabric while suppressing the deterioration of the texture, and others. The foregoing issue is solved by providing leg gathers (60) that have: an inside non-woven fabric layer (61) constituting a width-direction inner surface; an outside non-woven fabric layer (62) constituting a width-direction outer surface; elastically stretchable gather materials (63) that are provided along the front-back direction between the inside non-woven fabric layer (61) and the outside non-woven fabric layer (62) of at least forward end portions in front-back direction intermediate portions; and a liquid impervious film (64) that is sandwiched between the inside non-woven fabric layer and the outside non-woven fabric layer (62) ranging from a base end to a position nearer a forward end side than the base end, and is configured such that parts of the leg gathers (60) having the liquid impervious film (64) nearer the base end side than the forward end portions constitute non-woven fabric absent parts (65) where the inside non-woven fabric layer (61) does not exist and the liquid impervious film (64) is exposed.