FIG. 1 is a perspective view of an ear warmer having an external frame showing our new design;

FIG. 2 is a front view of the ear warmer of FIG. 1;

FIG. 3 is a rear view of the ear warmer of FIG. 1;

FIG. 4 is a right side view of the ear warmer of FIG. 1;

FIG. 5 is a left side view of the ear warmer of FIG. 1;

FIG. 6 is a top view of the ear warmer of FIG. 1; and,

FIG. 7 is a bottom view of the ear warmer of FIG. 1.

The broken lines in the figures merely illustrate the environment for the ear warmer of the present design and therefore form no part of the claimed design.