The ornamental design for a portion of a shoe upper, as shown and described.
FIG. 1 is a perspective view of a portion of a shoe upper showing my new design;
FIG. 2 is a side of the portion of a shoe upper shown in FIG. 1;
FIG. 3 is a front view of the portion of a shoe upper shown in FIG. 1;
FIG. 4 is a rear view of the portion of a shoe upper shown in FIG. 1; and,
FIG. 5 is a top view of the portion of a shoe upper shown in FIG. 1.
The uneven broken line immediately adjacent to the shaded area represent the bounds of the claimed design. All other uneven broken lines represent the remaining portion of the shoe. The uneven broken line representations in FIGS. 1–5 are for illustrative purposes only and form no part of the claimed design.