I claim the ornamental design for a shoe sole, as shown and described.
FIG. 1 is a perspective view of a shoe sole according to an embodiment of the design.
FIG. 2 is a left side view of the shoe sole.
FIG. 3 is a right side view of the shoe sole.
FIG. 4 is a front view of the shoe sole.
FIG. 5 is a rear view of the shoe sole.
FIG. 6 is a bottom view of the shoe sole; and,
FIG. 7 is a top view of the shoe to which the shoe sole is attached.
The broken lines on the sole of the shoe depict stitching, which forms a part of the claimed design. Dashed lines depicting a shoe upper are for purposes of illustrating environmental structure associated with the design in a condition of use, and form no part of the claimed design.