Sleep & Beyond 20 by 36-Inch Washable Wool Pillow, King, Natural Cover: 100% Natural Cotton Percale/ Fill: 100% Shropshire Wool Imported Washable hand-tufted wool pillow to gently cradle and protect your head and neck Keeps you warm in winter and cool in summer; Encased in unbleached natural cotton percale fabric, 270TC Shropshire wool needs to be cleaned less frequently than other fibers; Washable cover is recommended