PU coated fabric's unique molecular structure combines hydrophilic (water-attracting) and hydrophobic (water-repelling) segments. PU coatings are applied with precision, creating a barrier against external moisture while allowing internal moisture to escape. In this Vlog, we tested the breath-ability of PU coated fabrics through equipment. We can see the good breath-ability of PU coated fabric. Its ability to wick away moisture and allow water vapor to exit ensures that you stay comfortable and dry, making it a popular choice for a wide range of applications, from backpack, luggage, Tent and outdoor gear, raincoat, etc.