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What is the principle behind making a functional jacket windproof, waterproof and breathable? What is the testing method?

Before getting to know functional clothing, I always thought it was amazing why a jacket can be windproof, waterproof and breathable? Unexpectedly, these two seemingly contradictory functional characteristics can coexist, thereby creating a functional jacket that is both windproof and breathable. Today, I will take you to understand the principle of their coexistence and how this function is tested.

Will it still get wet even if I wear a waterproof jacket? Teach you the difference between "waterproof" and "water-repellent"!

After several days of heavy rain, sometimes it rained and sometimes stopped, someone asked: "When it rains, why do the water droplets on the surface of my jacket not fall off, but even absorb into it? Does it mean that my jacket is no longer waterproof?" ?” That’s because your DWR water-repellent layer has gradually been lost, resulting in reduced waterproofness. There are many waterproof products on the market, and waterproof jackets are no longer exclusive clothing for mountaineering, camping, and hiking. Living in the city, we are always faced with the possibility of rainfall. Today, I will show you the differences between different waterproof levels. Where!

Ultra Coat functional fabric is revealed, is it the key?

In the last issue, I shared with you "the most powerful item in winter", how to keep out the cold while also having other functional features and maintaining a sense of fashion. That's right! This issue directly deciphers the most important core role of the "Ultra Coat Temperature Control Raincoat". How is its excellent functionality created? (Key role: The editor reminds that it is a plant, and You can see it almost every day in life)