Waterproof and breathable jacket

BREATHABLE jacket waterproof

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Waterproof and breathable jacket
If the general material is waterproof, it is often not breathable, such as plastic, rubber, etc.; and the material with better breathability, such as cotton products, is not waterproof. The materials for making jackets take into account both waterproof and breathable performance, but the price of this consideration is that both waterproof and breathable performance are limited, and everyone must not have high expectations. Generally, when climbing continuously, it will feel stuffy to some extent, and in continuous heavy rain, it will always be wet inside.
Waterproof: The fabric of the jacket is as waterproof as possible on the basis of ensuring a certain breathability, but the waterproofness is far less than that of plastic, rubber and other materials.
Breathability: steam method, pour hot water in the cup, cover the fabric of the jacket on the mouth of the cup, or press a piece of glass on the fabric, if you see hot air coming out through the fabric, or condensation on the glass, That means the fabric is breathable. However, it should be noted that the air permeability of different materials is different, with high and bottom. The above test can only qualitatively prove that the material is not completely airtight, but the air permeability is still unknown.