Open a small mouth directly in the gap of the down jacket and take out the small ball of down by hand.

Types of down:

Goose down: large down, small feather stalk, good quality, sufficient elasticity and strong warmth retention;

Duck down: down flowers and feather stems are worse than goose down, but their quality, elasticity and warmth retention are high;

Goose-duck blended cashmere: cashmere is general, with poor elasticity, but good warmth retention;

Flying silk: processed and crushed by wool, it is poor in elasticity and warmth retention, powdery and poor in quality, and easy to agglomerate after washing.

Among the four natural warm-keeping materials, cotton, wool, silk and down, down has the best warm-keeping performance.

Compared with down, cotton, silk, chemical fiber, wool and other fibers are linear, which not only reduces the amount of fixed air, but also hardens after long-term use, affecting warmth and comfort, while down will not harden and remain fluffy after long-term use.

Extended data:

classify

Down can be generally divided into goose down and duck down by source, white down and gray down by color, and of course there are black down produced by Icelandic duck down. Relatively speaking, better down generally comes from larger and more mature birds, so goose down will be slightly better than duck down. In terms of color, white velvet can be used for light-colored fabrics without color penetration, and it is more popular than gray velvet.

Color: gray velvet, white velvet.

Source: duck down, goose down

Composition: range from 5% to 95%. For example, it can be said: 90% white goose down and so on.

National standard: cashmere content is above 50%.

References:

Baidu encyclopedia -down