I claim the ornamental design for footwear, as shown and described.
FIG. 1 is a right perspective view of footwear, showing my new design;
FIG. 2 is a left perspective view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a top view thereof.
The broken lines shown in the figures that are immediately adjacent to the shaded areas and define unshaded regions represent the bounds of the claim. All other broken lines, including the six D-ring elements shown in broken lines, are directed to environment that forms no part of the claimed design. The broken lines form no part of the claimed design.