The ornamental design for a productpackaging, as shown and described.
FIG. 1 is a front, top and right side perspective view of the product packaging, showing an unclaimed car seat cover contained in and accessed through the packaging in dashed lines;
FIG. 2 is a front, top and right side perspective view of the product packaging of FIG. 1 without the car seat cover;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines, where shown, illustrate environmental structure and form no part of the claimed design.