FIG. 1 is a perspective view of a packaging bag in a filled state;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a top view of FIG. 1;

FIG. 6 is a bottom view of FIG. 1.;

FIG. 7 is a cross sectional view along line 7—7 of FIG. 2;

FIG. 8 is a front view of the packaging bag of FIG. 1 in an unfilled state;

FIG. 9 is a right side view of FIG. 8; and,

FIG. 10 is a top view of FIG. 8.

The broken line showing of an extension of the packaging bag is included for the purpose of illustrating environmental structure and forms no part of the claimed design.