60% Polyester, 40% Viscose Rayon Imported [1-Pack Queen Size Pillow] Unmatched Support - Crafted with 80% shredded memory foam and 20% Polyester Fiber. This type of memory foam technology allows for a much more sensual and personal night of sleep. It gives users the ability to sleep for a prolonged period of time and not have to worry about aches and pains. The memory foam provides support for the neck, shoulders, back, and head.