A Chamber pillow is a unique construction that gives you three layers of filling - usually with a firm inner core and a down or down alternative filling on the outside. This pillow features a supportive core of a 5/95 feather blend and down alternative on the outside (or top and bottom). This "chamber" pillow is filled in the center with a 5/95 blend of Grey Goose Down and Feathers for support. The outer sides are filled with hypoallergenic polyester down alternative to provide softness and comfort. The outer cover is soft and breathable 100 % cotton woven in a durable and leakproof cambric weave. Sold to many fine resorts and hotels.