Poly poly core spun sewing thread has both the high strength of polyester filament sewing thread and the natural fuzz and feel of polyester short fiber sewing thread or cotton thread, making it very suitable for high-speed sewing. To improve production efficiency, many garment companies use high-speed sewing machines that can reach speeds of over 5000 revolutions per minute. Ordinary spun polyester threads cannot withstand high heat or have insufficient tensile strength to break, so the most ideal sewing thread is to use poly poly core spun sewing thread.