Vacuum Backpack

FIG. 1 is a front perspective view of a vacuum backpack, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front perspective view showing the vacuum backpack, in another configuration of use.

All the broken lines in the drawings depict portions of the vacuum backpack that form no part of the claimed design.