The ornamental design for footwear, as shown and described.
The sole FIGURE is a side elevational view of footwear according to the present invention.
The portions shown in dash-dash broken lines are solely for the purpose of illustrating context, environment or other unclaimed areas and form no part of the claimed design. The dash-dash lines illustrate unclaimed environmental structure. The dash dot dash lines define the bounds of the claimed design form no part thereof.