I claim the ornamental design for a breast comfort pack, as shown and described.
FIG. 1 is a top right front perspective view of the breast comfort pack of the subject invention.
FIG. 2 is a bottom left rear perspective view of the breast comfort pack.
FIG. 3 is a top view of the breast comfort pack, the bottom view being a mirror image thereof.
FIG. 4 a left side view of the breast comfort pack, the ride side view being a mirror image thereof.
FIG. 5 is a front view of the breast comfort pack; and,
FIG. 6 is a rear view of the breast comfort pack.
The broken lines shown in the figures are included for the purpose of illustrating portions of the breast comfort pack and form no part of the claimed design.