Most people think that the quality of white duck down is better than that of grey duck down, but it is not. The cold-proof and warm-keeping performance of the two depends on the processing technology. As long as the technology is proper, there is no difference. The only difference in application is that when some down jacket fabrics are light in color, and there are not many layers of inner liner materials, in order to avoid the color of filler being exposed, white duck down will be preferred. Duvets made of very milky white fabrics usually use white duck down to avoid looking gray. However, if the gallbladder cloth is thick or double-layer gallbladder cloth, this problem need not be considered at all. White duck down is more expensive than grey duck down? More breathable? White cashmere of the same quality is more expensive than grey cashmere because of its high cost. In southern China, most of them are lake duck down, with cool gray hair. Compared with grey ducks, the total number of white ducks is very small. Of course, the output of white duck down is small and the price is expensive. But when it comes to breathability, it's all the same! It's just a marketing method planned by the store! In short, no one can see clearly inside! You are unlikely to see a person and say that I am wearing a white duck down jacket! People are unlikely to say that your grey duck down down jacket is really beautiful! So when you buy down jacket, you don't need to consider whether the stuffing is white duck down or grey duck down. In addition, some customers found that the clothing label on their hands was grey duck down, while the clothing label on the web page was indeed white duck down. Then, there is a big difference between white duck down and grey duck down: color selection. When filling down jackets, in order to make the overall appearance elegant and opaque, light down jackets will be filled with white duck down, while dark brown down jackets will be filled with gray duck down. However, a piece of clothing and trousers usually have a variety of colors, so what is presented on the clothing label on the webpage will be inconsistent with the down jacket you bought in practice. The above is the explanation and comparison of the thermal insulation performance of white duck down. Thank you for watching it. Next time, we will bring you other related product knowledge.