PURPOSE: To fold every pad until it is exhausted by closely attaching a flat article which is folded in a plurality of squares to a tack, packaging the article by a hexahedral package sleeve, and forming it in an openable and re-closable manner over the whole width of one side.

CONSTITUTION: Each rectangular-folded slip-on pad 2 is stacked, and closely attached to a stack 12, and packaged by a hexahedral soft package or carton 20. The soft package 20 comprises a package box formed using a rectangular synthetic resin foil blank, and the synthetic resin foil, e.g. a polyethylene foil is stacked by heat seal or by using the adhesive. End wall parts, 30, 31 are formed by appropriately folding end flaps 23, 24 and 25, and the end flap 23 combined with a forward wall part 26 is formed trapezoidal by the folding operation similar to a corresponding end flap 24 on a rear wall part 27. The end flaps 23, 24 and 25 are adhered to each other, a tearable or unsealing flap 37 extended over its width is provided on the rectangular forward wall part 26, and the tearable flap 37 is once unsealed, and then, re-closed.