FIG. 1 is a front view of a covering material, showing our new design;

FIG. 2 is a front view of an alternate embodiment thereof;

FIG. 3 is a front view of an alternate embodiment thereof; and,

FIG. 4 is a front view of an alternate embodiment thereof.

The broken line showing of a covering material is included for the purpose of illustrating environmental structure and forms no part of the claimed design.

The covering material can in particular embodiments be a transdermal therapeutic system (e.g. transdermal drug delivery system), comprising e.g. a face (face sheet/top layer) suitably with imprint including a line, which can be continuous or dashed, which imprint can be suitably provided e.g. by a removable film.