A fastening tape (90) for this disposable diaper (10) is provided with a base sheet and a hook sheet. The base sheet has the following: an attachment section (93) that is attached to a side flap and a tip section (96). The length (L11) of the tip section (96) in the widthwise direction of the product is 5-12 mm. The distance (L12), in the lengthwise direction of the product, between the outer edge (in the lengthwise direction of the product) of the attachment section and the outer edge (in the lengthwise direction of the product) of the hook sheet is 2-12 mm. The length (L13), in the lengthwise direction of the product, of the boundary between the hook sheet and the tip section (96) is at least twice the distance (L14), in the lengthwise direction of the product, between the inner edge (in the lengthwise direction of the product) of the base sheet and the inner edge (in the lengthwise direction of the product) of the hook sheet. The hook sheet (92) extends further outwards, in the lengthwise direction of the product, then the point (C1) midway between the outer edge (in the lengthwise direction of the product) of the inner edge (in the widthwise direction of the product) of the hook sheet and the outer edge (in the lengthwise direction of the product) of the inner edge (in the widthwise direction of the product) of the tip section (96).
