The ornamental design for a handle bag, as shown and described.
FIG. 1 is a photograph of a front side view of a handle bag according to the present invention;
FIG. 2 is a photograph of a rear side view of the handle bag of FIG. 1;
FIG. 3 is a photograph of a right side view of the handle bag of FIG. 1 with the upper handles extended upwards;
FIG. 4 is a photograph of a left side view of the handle bag of FIG. 1 with the upper handles extended upwards;
FIG. 5 is a photograph of a bottom view of the handle bag of FIG. 1; and,
FIG. 6 is a photograph of a perspective view of the handle bag of FIG. 1 from above with the upper handles resting on respective outer sides thereof, the tag indicated with dashed lines not forming part of the drawing.
The broken lines showing a tag are for the purposes of illustrating environment and form no part of the claimed design.