The ornamental design for a fleeceheelportion, as shown and described.
FIG. 1 is a perspective view of a fleece heel portion showing my new design in an environment;
FIG. 2 is a perspective view of the fleece heel portion;
FIG. 3 is a side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a front view thereof;
FIG. 7 is a side view thereof; and,
FIG. 8 is a bottom view thereof.
Broken-lines in FIGS. 1 showing an article of footwear indicate the environment of the claimed design. None of the broken lines or the areas within them form any part of the claim.