FIG. 1 is a front elevation view of a backpack showing my new design;
FIG. 2 is a back elevation view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front elevation view thereof illustrating a folded state of the backpack;
FIG. 7 is a back elevation view thereof illustrating the folded state of the backpack;
FIG. 8 is a top plan view thereof illustrating the folded state of the backpack;
FIG. 9 is a bottom plan view thereof illustrating the folded state of the backpack;
FIG. 10 is a right side elevation view thereof illustrating the folded state of the backpack;
FIG. 11 is a left side elevation view thereof illustrating the folded state of the backpack;
FIG. 12 is a perspective view thereof, viewed from an upper part, illustrating the fold state of the backpack;
FIG. 13 is a perspective view thereof, viewed from a lower part, illustrating the fold state of the backpack; and,
FIG. 14 is a perspective view thereof illustrating the compactly folded state of the backpack.