The ornamental design for a solestructure for an article of footwear, as shown and described.
FIG. 1 is a bottom view in plan of a first embodiment of a sole structure for an article of footwear showing my new design;
FIG. 2 is a top view in plan of the sole structure of FIG. 1;
FIG. 3 is medial side view in elevation of the sole structure of FIG. 1;
FIG. 4 is a lateral side view in elevation of the sole structure of FIG. 1;
FIG. 5 is a front view of the sole structure of FIG. 1; and,
FIG. 6 is a rear view of the sole structure of FIG. 1.
The above figures illustrate a sole structure for a left foot. A second embodiment is the sole structure for a right foot, which would be a mirror image of the figure views of the first embodiment for a left foot. Accordingly, the figures pertaining to the right-footed sole structure have been omitted. The broken line illustration of unclaimed environmental structure in the drawings is not part of the claimed design.