Filled with 100% US Grown Organic Buckwheat Hulls. * Comes in zippered super soft fleece case and strech poly liner for your comfort. *Cover: imported * Covered with Super Soft Fleece for soft texture. *Cover and liner are machine washable. * Will conform and adjusat perfectly to your head, neck, and spine. Will NOT collapse like foam. * The buckwheat hulls allow air to circulate throughout the pillow. Cooling it off quickly.