FIG. 1 is a top perspective view of a steam pocket showing our new design; FIG. 2 is a top plan view thereof; FIG. 3 is a bottom plan view thereof; FIG. 4 is a back elevational view thereof; FIG. 5 is a front elevational view thereof; FIG. 6 is a side view thereof; and, FIG. 7 is a front perspective view of the steam pocket of FIG. 1 installed on a steam mop.