The quality of the down jacket can be judged in the following ways:
Down content and down filling:
Down content: refers to the proportion of down in the whole piece of down jacket, usually expressed as a percentage. High-quality down apparel usually contains more than 80% down, up to 90%.
Down content: the total weight of down in a down jacket, usually expressed in grams. The higher the down content, the better the warmth.
Down type:
Goose down is lighter, warmer and has a better fluffiness than duck down, so goose down down jackets are usually of higher quality.
The maturity of the down also affects the quality, with mature down keeping you warmer.
Fluffiness:
Fill Power is a measure of how fluffy the down is, usually expressed as a number, e.g. 700 puffs. The higher the Fill Power, the better the warmth and compressibility of the down.
Fabric:
The fabric of high-quality down apparel should be windproof, waterproof, breathable and certain abrasion resistance.
The higher the density of the fabric, the better the downproof, not easy to drill down phenomenon.
Sewing process:
Check whether the stitching is even and firm, and whether there are any extra threads.
High-quality down apparel usually adopts anti-down drilling process, such as double-layer fabric or special sewing technology.
Cleanliness of the filling:
The cleaner the fill, the better the treatment of the down and the less likely it is to trigger allergies when worn.
Brand and manufacturer:
Choosing a well-known brand or a manufacturer with a good reputation usually guarantees the quality of the down jacket.
Odor:
Newly purchased down jackets that have a noticeable chemical or fishy odor may have improperly treated down or be of poor quality.
Label Information:
Check the product label for information on the down jacket's ingredients, washing instructions, and origin, which regular product labels will list in detail.
Try on experience:
Feel the weight, warmth, comfort and freedom of movement of the down jacket when you try it on.
Through the comprehensive judgment of these aspects, you can roughly determine the quality of the down jacket. When buying, it is recommended to make more comparisons, check user reviews and refer to test reports from professional organizations.