The ornamental design for a handle bag, as shown and described.
FIG. 1 is a first side view of a handle bag according to the present invention;
FIG. 2 is a second, opposing side view of the handle bag of FIG. 1, the tag indicated with dashed lines is for illustrative purposes only and forms no part of the claimed design;
FIG. 3 is a perspective view from a bottom corner of the handle bag of FIG. 1, the tag indicated with dashed lines is for illustrative purposes only and forms no part of the claimed design;
FIG. 4 is a perspective view from a top end of the handle bag of FIG. 1 with the upper side closed, the tag indicated with dashed lines is for illustrative purposes only and forms no part of the claimed design;
FIG. 5 is a perspective view from an upper corner of the handle bag of FIG. 1 with the upper side closed;
FIG. 6 is a perspective view from above the handle bag of FIG. 1 with the upper side closed, the tag indicated with dashed lines is for illustrative purposes only and forms no part of the claimed design; and,
FIG. 7 is a fragmentary, perspective view from above a side of the handle bag of FIG. 1 with the upper side open, the tag indicated with dashed lines is for illustrative purposes only and forms no part of the claimed design.