To solve a problem that thin cloth materials and thin sheet materials are used for materials of conventional portable carrier bags which are folded or rolled up to allow the compact storage, however, when goods are put in a carrier bag formed of a thin cloth material or a thin sheet material, the material often bites into a hand, fingers and the like to cause pain, and applies a burden on the body and a dedicated handle is required.

A bag capable of storing a bag body and handles themselves is attached to a part of one handle of a carrier bag formed of the thin cloth material and the thin sheet material which are folded or rolled up to allow the compact storage so that, when non-using the carrier bag, a user stores the bag body and the handles therein and casually carries it like a porch. When using the carrier bag, the user puts goods in the bag body and uses the attached bag to the handle as a cushion pad so as to easily carry it without any burden. This carrier bag is thus casually carried for carrying the goods without applying the burden on the body.