PROBLEM TO BE SOLVED: To provide a diaper cover which can support the iliopsoas muscle of a wearer.SOLUTION: The diaper cover 1 comprises: a front part F and a back part B located in a front-back direction and an intermediate part M located between them a right waist part 2 and a left waist part 3 extending from the back part B in a width direction and a right flap part 4 and a left flap part 5 extending from the front part in the width direction x, wherein each of the right flap part 4 and the left flap part 5 is provided with a first attachment 6, and the right flap part 4, the left flap part 5 and the intermediate part M are stretchable, and the first attachment 6 is attachable to a position on a dorsal side of a wearer in a state where the right flap part 4 and the left flap part 5 are stretched.
