Flax fiber is the earliest natural fiber used by human beings and the only bundle plant fiber among natural fibers. It has good functions of moisture absorption, moisture dissipation and air permeability, fast heat conduction, cool and crisp, no sweat absorption, light weight, strong strength, insect resistance and mildew resistance, less static electricity, less fabric pollution and soft and generous color tone. Very crazy. Suitable for excretion and secretion of human skin. Baotou can protect toes.