The ornamental design for a shoe harness of a traction device, as shown and described.
FIG. 1 is a back, top, right perspective view of a shoe harness of a traction device, showing our new design;
FIG. 2 is an enlarged portion view taken from encircled portion labeled, “FIG. 2,” in FIG. 1;
FIG. 3 is a top plan view of FIG. 2;
FIG. 4 is a bottom plan view of FIG. 2; and,
FIG. 5 is a right side view of FIG. 2.
The broken lines shown in the drawings represent portions of the shoe harness of a traction device that form no part of the claimed design. The shade lines in the figures show contour and not surface ornamentation. The areas with shade lines are part of the claimed design. The surface area between the solid outer edge in FIG. 4 and the interior contour shade line in FIG. 4 is part of the claimed design.