US D451274 S1
FIG. 1 is a front elevational view of a backpack showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken lines shown on the surface of the backpack, throughout the views, are understood to represent stitching. And the broken lines showing a hand strap and shoulder straps throughout the views illustrate portions of the design which form no part of the claim.