The sewing machine thread expressly made for the use of the bag making. Available in two types of Thinner and Thicker. Thinner type does not choose the materials to be sewn and can be used on the various bag materials from cotton cloth to synthetic leather and can match to any material with the satisfactory finish of their beautiful lustrous seams. Thicker type is stronger in tension strength and of adequate elongation function to be used for stitching on thicker bag materials. Recommendable also for the use of general decorative stitching.