The ornamental design for a wearablehorizontalpocket, as shown and described.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a back view of the present invention;
FIG. 4 is a left side view of the present invention;
FIG. 5 is a right side view of the present invention;
FIG. 6 is a top view of the present invention;
FIG. 7 is a bottom view of the present invention; and,
FIG. 8 is an alternate view of the present invention attached to a user.
The long dash-dash type broken line illustrates stitching on the wearable horizontal pocket and form part of the claimed design. The short dash-dash type broken line showing of the straps in FIGS. 1-8 and showing of the cords and human figure in FIG. 8 illustrates environment of the claimed design and form no part thereof.