ZR-15

The original triple-layered fabric is made with cotton for the warp and wool, cotton linen, and silk for the weft. The three pieces of fabric are held together with water-soluble binding threads, so they are sewn together as one piece of fabric as usual, but after completion, the binding threads are dissolved in water to separate them into three pieces of different materials. The combination makes use of the functionality of each material, with warm wool on the outside, silk on the inside that touches the skin, and cotton linen between the two, which is easy to handle. A layer of air is created between each piece of fabric to maintain warmth. Scraps from cutting other products using the above fabrics were stocked, and they were recut to fit the size of the scraps and sewn again as a large piece of cloth. There are individual differences in the position of the patchwork, the grain of the fabric, and the front and back. It can be used reversibly.