The ornamental design for a dualbag with a black inner and a whiteouterbag, as shown and described.
FIG. 1 is a front perspective view of a bag that includes a black inner bag and a white outer bag;
FIG. 2 is a front view of the bag of FIG. 1, the back view being the same as the front view; and,
FIG. 3 is an exploded view of the bag of FIG. 1, showing the black inner bag and the white outer bag.
The broken lines in the drawings illustrate portions of the dual bag that form no part of the claimed design. Where a broken line box is indicated, material inside the box is part of the claimed design. The bracket showing broken away portions in FIGS. 1-3 illustrate the bag has no specific length.