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 our new design illustrated in an closed position;
FIG. 2 is a side elevational view thereof, the opposite side elevational view being a mirror image;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a perspective view thereof illustrated in an open position;
FIG. 5 is a side elevational view thereof; and,
FIG. 6 is a rear elevational view thereof.
The broken line showings of the circular eyelets, the interior of the instep portion of the shoe and the remainder of the shoe form no part of the claimed design. The darker stippling shown in FIGS. 4-6 depict a different texture or material.