first generation:

shoes, clothing, tents, sleeping bags earlier in order to achieve waterproof, windproof, just in the fabric covered with waterproof glue, in order to achieve the purpose of waterproof, this material and process of production of products, can withstand a certain amount of water pressure, but not breathable, and waterproof breathable.

second generation:

PU film, which is a kind of water pressure resistance is very good material, the product fabric and composite together, can achieve better waterproof stability, its high-end products may have some moisture permeability function, but the effect is not ideal. Such as: market existing KING-TEX.

third generation:

TPU film, developed on the basis of PU film, is better than PU film in terms of air permeability, moisture permeability and water pressure resistance. It is a waterproof and breathable film instead of PU film. There are TING-TEX and KING-TEX films in China.

fourth generation:

EPTFE (polytetrafluoroethylene) is a new generation of waterproof breathable material, the world’s best manufacturers are using this material, combined with their respective company’s research and development of composite processing technology to develop different brands of EPTFE composite fabric, its waterproof permeability are better today.