Backpack

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

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of portion 9 shown in FIG. 2 ;

FIG. 10 is an enlarged view of portion 10 shown in FIG. 2 ;

FIG. 11 is a perspective view of the backpack where a bottom assembly of the backpack is separated from the backpack;

FIG. 12 is a perspective view of the backpack where a ventilation assembly of the backpack is separated from the backpack;

FIG. 13 is a perspective view of the bottom assembly of the backpack, shown separately for illustration;

FIG. 14 is another perspective view thereof;

FIG. 15 is a front elevational view thereof;

FIG. 16 is a rear elevational view thereof;

FIG. 17 is a left side elevational view thereof;

FIG. 18 is a right side elevational view thereof;

FIG. 19 is a top plan view thereof;

FIG. 20 is a bottom plan view thereof.

FIG. 21 is a perspective view of a first piece of the ventilation assembly of the backpack, shown separately for illustration;

FIG. 22 is another perspective view thereof;

FIG. 23 is a front elevational view thereof;

FIG. 24 is a rear elevational view thereof;

FIG. 25 is a left side elevational view thereof;

FIG. 26 is a right side elevational view thereof;

FIG. 27 is a top plan view thereof;

FIG. 28 is a bottom plan view thereof; and,

FIG. 29 is an enlarged view of portion 29 shown in FIG. 21 .

The dash-dash broken lines in the drawings depict portions of the backpack that form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portions and form no part of the claimed design.