The best is white goose down (WGD), followed by grey goose down (GGD), white duck down (WDD) and grey duck down (GDD). The main difference between them is color. Of course goose down is better than duck down.

White goose down has two advantages: because it is white, it can be widely used in light-colored fabrics and is opaque; The advantages of fine, soft and long fiber structure, especially the long fiber, make the bulkiness and warmth retention better. However, duck down is relatively easy to harden because of its short fiber, which affects its warmth.

Extended data

There are four main steps in choosing down jackets: "look, touch, press and smell":

First, check whether there are registered trademarks and instructions for use, and pay attention to product appearance and sewing quality;

Second, feel whether it is soft and has a complete small piece of hair;

Thirdly, whether a press is fluffy and has a certain resilience;

Fourth, smell whether there is foul smell or peculiar smell.

Baidu encyclopedia-goose down