A central section formed of plural plies has upper and lower edges, first and second side edges, and a centerline parallel with and equally spaced from the upper and lower edges. Left and right straps are formed of plural plies. Each strap has parallel interior and exterior edges and parallel upper and lower edges. Strap stitching extends through the plural plies of each strap perpendicular to the upper and lower edges. Coupling stitching joins the each strap to the central section at a location equally spaced between the upper and lower edges of the central section.
