The ePTFE waterproof and moisture-permeable membrane is made of PTFE resin through a special process, two-way stretching, and unique technology. The ePTFE is formed into a microporous membrane with a diameter of 100-500 nanometers, and it has more than 1 billion holes per square centimeter. The pores are 700 times larger than water vapor molecules and 10,000 times smaller than water molecules, so that the membrane not only allows air and water vapor to pass through the membrane freely, but also keeps water out of the membrane. After years of exploration and continuous improvement, special treatment on the film can improve the service life of the film, wear resistance and water washing resistance. It can be combined with any fabric. Clothing can increase various functions and make the human body more comfortable. It is known as "breathable fabric".