DEWOOLFSON's Core Support Pillow is for those who prefer to rest their head on the softness of down and yet have the support of a harder-packed pillow, all in a cost-conscious alternative. In essence, this is a pillow within a pillow. The outer layer contains our popular, responsibly sourced, 650 fill-power, European white goose down and covered with a German-engineered, densely woven downproof fabric. But the inner core contains a blend of 10% white goose down and 90% delicate white goose feathers.