Portion of a shoe midsole
US D544680 S1
The ornamental design for a portion of a shoe midsole, as shown and described.
FIG. 1 is a front perspective view of a portion of a shoe midsole showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is a second side elevational view thereof; and,
FIG. 5 is a rear view thereof.
The broken line showing of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design.