To maintain a pull bag, having an auxiliary storage space on a side far from rolling wheels in a main storage space, in a storage position with a handle part left at an obtuse angle along a case body by using the auxiliary storage space.

The bag has: a rolling wheel 2 at a corner area C1, including one short side on the rectangular bottom face 10C of the main storage part and a peripheral wall face 10B continued from the short side; and the handle 3 in the vicinity of a corner area C2 at the diagonal position of the corner area C1. The storage space of the auxiliary storage part is located at a position far from the corner area C1 where the rolling wheel 2 of the main storage part is disposed. The handle 3 includes an arm rod part 3B which can be telescopically adjusted along a ceiling face 10A, and a grip part 3A disposed at the front end of the arm rod part 3B in the pulling direction. The crossing angle of the arm rod part 3B with the grip part 3A is formed obtuse, and the front end side of the grip part 3A is located in the vicinity of the outer edge of the auxiliary storage part with the handle 3 in the contracted position.