The ornamental design for a luggage, as shown and described.
FIG. 1 is a front perspective view of the luggage, having the front flap in a first orientation;
FIG. 2 is a front view of the embodiment of the luggage of FIG. 1;
FIG. 3 is a rear view of the embodiment of the luggage of FIG. 1;
FIG. 4 is a left side view of the embodiment of the luggage of FIG. 1;
FIG. 5 is a right side view of the embodiment of the luggage of FIG. 1;
FIG. 6 is a top view of the embodiment of the luggage of FIG. 1;
FIG. 7 is a bottom view of the embodiment of the luggage of FIG. 1; and,
FIG. 8 is a front perspective view of the embodiment of the luggage of FIG. 1 with the front flap in a second orientation.
The broken lines illustrate portions of the luggage and form no part of the claimed design. The drawings include grey surface shading that represents contour and not surface ornamentation or color.