according to the national standard of down jacket in China, the down jacket's cashmere content should not be less than 5%. According to this standard, no matter how heavy down jackets are, as long as the cashmere content reaches more than half, they are qualified down jackets.
however, the down content is different from the down filling quantity, which refers to the weight of all down filled in down jackets. Under the condition of ensuring the cashmere content, the cashmere filling amount of adult down jackets in the south should reach more than 1 grams, and that in the north should reach more than 2 grams, so that down jackets can play a better warm effect.
Precautions for purchasing down jackets:
Look at the elasticity of down jackets: the resilience of down jackets after being pressed, because the down jackets are basically filled with goose down and duck down, so they will have a certain resilience.
If you press the surface of the down jacket with your hands, it will bounce back quickly, which means that the quality of the down jacket is better, because there is sufficient down filler in it. On the contrary, if you press it, it will rebound slowly, or it won't bounce at all. Don't buy this down jacket, it has less padding and won't be too warm to wear.