side 19 of the headband 14 shown in fig5 includes both the outer thread 20 and an inner thread 21 which as shown in greater detail in fig7 are sewn together in a chain like pattern according to the conventional stitching method as shown in fig6 an upper thread 16 and a lower thread 17 are interwoven in a tongue and groove type relationship to each other through the space between the outer fabric 18 and the inner fabric 19 the resulting lines of stitching look the same on both the outer fabric 18 and inner fabric 19 with a single one of the threads 16 17 being visible on each fabric respectively according to the method of sewing with rubber thread according to the present invention shown in fig7 the outer thread 20 and the inner thread 21 are interwoven in a chain like pattern starting at the outer fabric 18 for purposes of description the outer thread 20 goes through both the outer fabric 18 and the inner fabric 19 and then weaves down and up through a double loop of the inner thread 21 as shown to form a chain like pattern on the inner portion 15 b of the lines of stitching the outer.