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