National velvet refers to down jackets that meet Chinese standards. The down jacket's "cashmere content" shall not be less than 50%, and the allowable deviation of cashmere filling content is -5%.

Authentic down jackets of regular brands have a nominal down content of 80%, that is to say, 80% of flower-shaped down (geese and ducks) and the other 20% are small stuffed feathers (goose feathers are sliced about 8 cm and duck feathers are sliced about 6 cm).

This wool is not the kind of knife feather you often see for badminton and feather fan, but a piece of wool with two or three layers, which is specially used for filling, and can also be used for filling down pillows, duvets, down mats and so on.

Extended data:

Precautions for purchasing down jackets:

1, you can't just rely on the exaggerated publicity of manufacturers, try to buy clothes produced by regular manufacturers.

2. It depends not only on the instructions of clothes, but also on the consistency of the contents of the tag and label.

3, be sure to pay attention to the washing instructions of clothes, generally speaking, down jackets are not allowed to be dry-cleaned.

If you are not sure whether the down jacket you bought is qualified, you can take the shopping receipt to the fiber inspection office of the local quality and technical supervision bureau for identification.

Reference source: Baidu Encyclopedia-Cashmere Content