The quality of 90% white duck down is better than that of 70% white duck down. The down jacket has high cashmere content, higher quality, bigger fluff, higher bulkiness and better clothes quality.

Because the cashmere content of 90 white duck down is better, it will naturally be more fluffy, light and more elastic. 80 White duck down only accounts for 80%, of which 20% is feather. However, the filling amount of 90 white duck down is 90%, of which only 10% is feather. Therefore, if the cashmere content of 80 white duck down is lower than that of 90 white duck down under the same quality, the natural warmth will be worse.