... layers, polypropylene on both sides The water-proof Moisture permeable film is a three layer highly breathable, fully waterproof membrane, ... high tensile spun-bonded polypropylene layers, with a microporous polypropylene film inside. The middle layer is the breathable waterproof membrane, and ... with clients from UK, US, UA, Italy, Greece, New Zealand, Germany, and so on. Moisture permeable film