Expertly filled with Siberian goose down, this fantastic duvet is soft and warm. Using the small down feathers, those closest to the body of the bird, this duvet is both light and warm. Considered by many to be the best filling, goose down is larger than that of duck, therefore commanding a greater surface area to trap more heat. Packed full with a fill power of 650, this duvet drapes across evenly to cover errant cool spots with ease. The cover is cotton and with a thread count of 300, this duvet is sure to avoid feathering poking through.