White duck down is better.

White duck down is more expensive because it is produced in smaller quantities and has a wider range of uses, not because it is more expensive because of better warmth, fluffiness and other properties. Overall, down is not as good as its color.

In terms of use: light-colored fabric-based clothing filler with white duck down, dark fabric-based down jacket will choose gray duck down, and there is no white duck down warmer than gray duck down said.

Just because some of the down products fabric color is lighter, and the inner liner with less layers of material, in order to avoid the color of the filler through the filler, will generally use white duck down. Especially white fabric down jacket, generally more will use white duck down, to avoid looking gray, but if the gallbladder cloth thicker or multi-layer gallbladder cloth, basically do not have to consider this problem.