I claim the ornamental design for a pants hat, as shown and described.
FIG. 1 is perspective view of the pants hat from the right front;
FIG. 2 is a left side view of the pants hat;
FIG. 3 is a right side view of the pants hat;
FIG. 4 is a perspective view of the pants hat from the left rear;
FIG. 5 is a rear view of the pants hat;
FIG. 6 is a front view of the pants hat; and,
FIG. 7 is a top view of the pants hat.
The evenly-segmented broken lines in FIGS. 1–7 show stitching patterns, which form a part of the claimed design. The change pocket shown in FIGS. 1, 3 and 5 in the long-short-short-long broken lines in the drawings illustrates environmental matter and forms no part of the claimed design.