Footwear midsole

[0001]FIG. 1 is a perspective view of a footwear midsole embodying the new design;

[0002]FIG. 2 is a bottom view thereof;

[0003]FIG. 3 is a top view thereof;

[0004]FIG. 4 is a right side view thereof;

[0005]FIG. 5 is a left side view thereof;

[0006]FIG. 6 is a front view thereof; and,

[0007]FIG. 7 is a rear view thereof.

[0008]The figures show features in broken lines that form no part of the claimed design. The broken lines immediately adjacent the solid line portions of the design form the boundary of the design, with the broken lines forming no part of the claimed design.