The ornamental design for an eyeliner with microbristles, as shown and described.
FIG. 1 is a top view of an eyeliner with microbristles.
FIG. 2 is a right side view of the claimed design.
FIG. 3 is a bottom view of the claimed design.
FIG. 4 is a left side view of the claimed design.
FIG. 5 is a front view of the claimed design.
FIG. 6 is a rear view of the claimed design; and,
FIG. 7 is a perspective view of the claimed design.
The dot-dash-dot broken lines shown in the drawings illustrate unclaimed subject matter of the eyeliner with microbristles, and form no part of the claimed design.