Backpack

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

FIG. 2 is a front view of a backpack.

FIG. 3 is a rear view of a backpack.

FIG. 4 is a left side view of a backpack.

FIG. 5 is a right side view of a backpack.

FIG. 6 is a top view of a backpack; and,

FIG. 7 is a bottom view of a backpack.

Any shading and cross-hatching are not features of the design but are utilized to illustrate the surface contours of the backpack design in the drawings.

The broken lines depict stitching lines and form part of the claimed design.