Backpack

FIG. 1 is a perspective view of a backpack;

FIG. 2 is a perspective, partially exploded view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front side elevation view thereof;

FIG. 6 is a rear side elevation view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a left side elevation view thereof.

The short dash-dash lines depict portions of the backpack that form no part of the claimed design. The long dash-dash lines depict stitching that does not form part of the claimed design.