How to judge the quality of a down jacket? Concealed preferred lightweight vest

Even the South has suddenly cooled down, far from the warm embrace of down jackets? Down jackets, which are durable and valuable, must be carefully selected. The most important thing is its "warm" function.

The principle of down warming, in simple terms, is to use a fluffy down to store a large amount of still air, and the still air layer is a poor conductor of heat, so it plays a role in keeping warm.

You must have seen "the amount of cashmere and the amount of cashmere" in the down feathers.
What do these mean?
90 velvet is the best down of the most cattle × representative?
The higher the amount of cashmere, the better?
What can I save my feathers?

Today, Sleeve has come to interpret the three important indicators and break the misunderstanding.

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