Empress 800 Artic, Our finest duvet, but still not above the occasional jaunt to the porch swing so that you can watch the fireflies come out at night without feeling the slightest chill, Our Hypodown blend is four parts white goose down and one part Syriaca clusters, a fiber from the milkweed plant, Feathers are for flying, down is for warmth, Down clusters are the soft fluff under feathers that keep birds comfortable no matter what the climate, In order to measure nature"s performance, down is rated by two distinct values, Percent Down Cluster and Fill Power, Syriaca clusters trap and suppress allergens, Sizes: King, Hypodown 800 is the finest down available with 95% Goose Down Cluster and only 5% Small Feathers, Ogallala down is Hungarian white goose down - the top down you can buy, Made in United States, Dimensions: 88-115"" H x 68-110"" W, SKU: OGCC173