The sewing process is difficult. The main component of wool coat is cashmere, and the main component of wool coat is wool. There is not much difference in essence. Wool is small and light, wool is thick and heavy, and the sewing process of double-sided cashmere coat is difficult, and it is usually sewn by hand. Wool coats don't sew labels because the sewing process is difficult. The value of double-sided cashmere lies in that two thin layers of cashmere fabrics are stitched together, but no stitching can be found. Because it can't be compounded by machine, it can only be sewn by hand, which determines that each double-sided cashmere coat is unique.