The ornamental design for a hairretentiondevice, as shown and described.
FIG. 1 is a perspective view of the hair retention device of the present invention;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a side elevational view thereof;
FIG. 5 is a rear elevational view thereof; and,
FIG. 6 is a bottom plan view thereof.
The long broken lines showing the woman's head, neck and shoulders in FIG. 1 are illustrative of environmental structure only and form no part of the claimed design.
The short broken lines on the rectangles across the top front in FIG. 1 and on both side flaps in FIGS. 3 and 5 and the two broken lines shown inside the top of the rounded panel in FIG. 3 represent stitching and are part of the claimed design.