The ornamental design for a leg warmer, as shown and described.
FIG. 1 is a front elevation view of a leg warmer according to my new design, shown for a left leg of an individual;
FIG. 2 is a rear elevation view thereof, shown for a left leg of an individual;
FIG. 3 is a left side elevation view thereof, shown for a left leg of an individual;
FIG. 4 is a right side elevation view thereof, shown for a left leg of an individual;
FIG. 5 is a top plan view thereof, shown for a left leg of an individual;
FIG. 6 is a bottom plan view thereof, shown for a left leg of an individual; and,
FIG. 7 is a perspective view thereof, shown on the left leg of an individual.
The dotted lines used to represent stitching and broken lines used to illustrate unclaimed environment in the drawings form no part of the claimed design.
The leg of the individual is shown to illustrate an environment of the design and forms no part thereof. The leg warmer is illustrated in the figures in a first embodiment as a leg warmer for the left leg, and a second embodiment is a leg warmer for the right leg which is a mirror image thereof.