1. Look: See if the down jacket has a trademark, factory name and address, certificate of approval, quality grade, cashmere content, etc.

2. Flapping: Flapping with your hands several times. If there is no dust spillage, it is a reliable product, easy to inflate, and can be used for puffing down products. Generally, chemical fiber flocs remain unchanged;

3. Touch: Touch carefully to see how it feels. Real down products can always feel some hard, needle-like hairs. In addition, when you touch down through the lining or surface with your hand, the feeling should be the same;

4. Pinch: The higher the cashmere content, the greater the shrinkage and the better the quality. A good down jacket can be reduced to the size of a pillow;

5. Try it on: You must try it on when buying clothes. Try it on to check the warmth of down jackets. The real down jacket can feel hot as long as you wear it for about 2 minutes;

6. Smell: A good down jacket should not smell bad. If there is obvious odor, it means that the down has not been strictly treated and washed and disinfected, and the quality is not good.