The ornamental design for a garment with harnessopening, as shown and described.
FIG. 1 is a front view of the garment with harness opening according to the first embodiment;
FIG. 2 is a rear view thereof;
FIG. 3 is a front view thereof, in which the garment is shown in an open position;
FIG. 4 is a rear view thereof, in which a flap of the garment is shown in an open position;
FIG. 5 is a front view of the garment with harness opening according to the second embodiment;
FIG. 6 is a rear view thereof;
FIG. 7 is a front view thereof, in which the garment is shown in an open position; and,
FIG. 8 is a rear view thereof, in which a flap of the garment is shown in an open position.
The long dash broken lines in the drawings illustrate portions of the garment with harness opening that form no part of the claimed design. The short dash broken lines illustrate stitching that forms part of the claimed design.