The ornamental design for a lowerextremitiescoat, as shown and described.
FIG. 1 is a front view of the lower extremities coat;
FIG. 2 is a rear view thereof;
FIG. 3 is a right view thereof;
FIG. 4 is a left view thereof;
FIG. 5 is a fold-over view of the front thereof; and,
FIG. 6 is an open view thereof.
The broken lines shown along the bottom edge of the pocket elements in the drawings depict stitching that form no part of the claim. All other broken lines shown in the drawings depict portions of the lower extremities coat and environment that form no part of the claim.