Hemp, refers to the fiber obtained from a variety of hemp plants, it is a plant fiber, known as cool and noble fiber. Hemp fiber, with good moisture absorption and dissipation of moisture and air permeability, heat transfer and thermal conductivity, cool and stiff, sweat not close to the body, light texture, strong, insect-proof and mildew-proof, less static electricity, the fabric is not easy to contaminate, soft and generous tone, rough, suitable for human skin excretion and secretion and other characteristics.