Our Organic Woolly Bolas are little clusters of wool that provide an optimum fluff and density for a pillow. Our most popular pillow features a zippered case to adjust your wool fill as you wish. You can purchase the outer zippered organic cotton floral knit pillow protector separately on our protectors page. All covers and fill are machine washable. Wool fill is Certified Organic by Oregon Tilth. Made in the USA.