A jacket - bag hybrid, comprising: a uniform main body (A, B), of flat form, that includes an interior (EXTA) and an exterior (EXTB) part, of multisided shape, with at least two essentially parallel upper and lower bases, and sides that connect tips of the upper and the lower bases, respectively, where the interior and the exterior parts define two openings (OP1, OP2) of elliptical shape and size, appropriate for the human hand to go through, where the openings are symmetrically placed close to the connection of the upper base with the sides, respectively, characterized in that the interior and the exterior parts are sewn perimetrically with each other, as well as around the openings (OP1, OP2), so that the interior (EXTA) and the exterior (EXTB) parts shape a storing area, between the openings, where the seams are distributed, so that they create one or more openings, not visible when the jacket bag is extended, where the jacket - bag hybrid includes at least one closeable opening along the upper base to provide access to the storing area, a back section that is formed by the outline of the storing area in the interior and the exterior parts, and two hand sections, where each section is defined by the rest of the interior and the exterior parts, around each elliptical opening (OP1, OP2), respectively, where the back section and the two hand sections allow the jacket - bag hybrid to function as a jacket, two sections, that are shaped by folding along the vertical line that goes through half of its upper and lower base, so that the elliptical openings coincide geometrically and shape a common opening, where the two sections that are shaped by the folding allow the jacket - bag hybrid to function as a bag. a uniform main body (A, B), of flat form, that includes an interior (EXTA) and an exterior (EXTB) part, of multisided shape, with at least two essentially parallel upper and lower bases, and sides that connect tips of the upper and the lower bases, respectively, where the interior and the exterior parts define two openings (OP1, OP2) of elliptical shape and size, appropriate for the human hand to go through, where the openings are symmetrically placed close to the connection of the upper base with the sides, respectively, characterized in that the interior and the exterior parts are sewn perimetrically with each other, as well as around the openings (OP1, OP2), so that the interior (EXTA) and the exterior (EXTB) parts shape a storing area, between the openings, where the seams are distributed, so that they create one or more openings, not visible when the jacket bag is extended, where the jacket - bag hybrid includes at least one closeable opening along the upper base to provide access to the storing area, a back section that is formed by the outline of the storing area in the interior and the exterior parts, and two hand sections, where each section is defined by the rest of the interior and the exterior parts, around each elliptical opening (OP1, OP2), respectively, where the back section and the two hand sections allow the jacket - bag hybrid to function as a jacket, two sections, that are shaped by folding along the vertical line that goes through half of its upper and lower base, so that the elliptical openings coincide geometrically and shape a common opening, where the two sections that are shaped by the folding allow the jacket - bag hybrid to function as a bag.