FIG. 1 is a front perspective view of a bag of the claimed design;
FIG. 2 is a front elevational view of the bag shown in FIG. 1;
FIG. 3 is a rear elevational view of the bag shown in FIG. 1;
FIG. 4 is a right side elevational view of the bag shown in FIG. 1;
FIG. 5 is a left side view of the bag shown in FIG. 1;
FIG. 6 is a top plan view of the bag shown in FIG. 1;
FIG. 7 is a bottom plan view of the bag shown in FIG. 1;
FIG. 8 is a front perspective view of the bag shown in FIG. 1 in an open position; and,
FIG. 9 is a right side, enlarged view of a portion of the bag shown in FIG. 1.