The ornamental design for footwear, as shown and described.
FIG. 1 is a front perspective view of a footwear showing my new design;
FIG. 2 is a right side view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof; and,
FIG. 6 is a top view thereof.
The broken line showing of the laces, front stitching, portions of the sole, rear leather tab, and rear star element in the drawings shows unclaimed subject matter.