The ornamental design for a side element of a shoe upper, as shown and described.
Description:
FIG. 1 is a side elevational view of a side element of a shoe upper showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevatioal view thereof; and,
FIG. 4 is a rear elevational view thereof.
The broken line showing of a shoe and the remaining portion of the upper shown in FIGS. 1-4 is for illustrative purposes only and forms no part of the claimed design.
