FIG. 1 is a top, side and rear perspective view of a flask with handle showing my new design;

FIG. 2 is an exploded perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a front view thereof.