FIG. 1 is a perspective view of a footwear upper in accordance with my design;
FIG. 2 is a left side elevation view thereof;
FIG. 3 is a plan view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof; and,
FIG. 6 is a right side elevation view thereof.
The dashed broken lines in the footwear upper depict stitching and form part of the claimed design. The dashed broken lines showing of a sole at the bottom of the footwear upper are for the purpose of illustrating environmental structure and form no part of the claimed design.