Abstract: In a waist expanding and contracting structure for pants or the like of a type having waist pockets, a waist part 1 consists of a front waist part 2, a back waist part 3, and a side waist part 4. The structure includes a first elastic member 14 which is positioned between a front waist surface cloth 6 and a front waist reverse cloth 8 with its one end sewn to the side waist part and with its other end sewn to both the front waist surface cloth and the front waist reverse cloth by sewing together, and a second elastic member 15 which is positioned at the rear of the side waist part 4 with its one end sewn to the back waist part 3 and with its other end sewn to the front waist reverse cloth 8. A side cloth 13 is folded back to be sewn to a hemmed edge P1 of the waist pocket, and a pocket bag 17 to be opened and closed by a fastener 16 is provided between the front body part 5 and a reverse cloth 7 of the front body part.

Abstract: In a waist expanding and contracting structure for pants or the like of a type having waist pockets, a waist part 1 consists of a front waist part 2, a back waist part 3, and a side waist part 4. The structure includes a first elastic member 14 which is positioned between a front waist surface cloth 6 and a front waist reverse cloth 8 with its one end sewn to the side waist part and with its other end sewn to both the front waist surface cloth and the front waist reverse cloth by sewing together, and a second elastic member 15 which is positioned at the rear of the side waist part 4 with its one end sewn to the back waist part 3 and with its other end sewn to the front waist reverse cloth 8. A side cloth 13 is folded back to be sewn to a hemmed edge P1 of the waist pocket, and a pocket bag 17 to be opened and closed by a fastener 16 is provided between the front body part 5 and a reverse cloth 7 of the front body part.