The ornamental design for an inverted pouchdesign, as shown and described.
FIG. 1 is an exploded front perspective view of the new design for an inverted pouch showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view, the left side view being a mirror image thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a bottom view thereof; and,
FIG. 6 is a top view thereof.
The broken line showing of portions of the inverted pouch is included for the purpose of illustrating environmental structure and forms no part of the claimed design.