In the figures four types of broken lines are used. Single lines of long dashes are meant to enclose unclaimed areas. Two closely spaced lines of long dashes delineate fabric of substantial thickness overlaid on an underlying substrate of material all of which is also unclaimed. Lines composed of short dashes are lines of stitching lying within the claimed subject matter. Lines of evenly spaced dots are meant to connote lines of stitching which are in unclaimed areas of the present invention.