FIG. 1 is a front elevational view of a side element of a shoe upper showing my new design;

FIG. 2 left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view of a second embodiment of FIG. 1;

FIG. 5 is a left side elevational view of FIG. 4; and,

FIG. 6 is a top plan view of FIG. 4.

The broken line showing of a shoe in FIGS. 1-6 is for illustrative purposes only and forms no part of the claimed design.