Hobbs Poly-Down Pillow Pals Pillow Inserts (w/ultrasoft, polished cotton covers) maintain their shape, offer superior loft, are completely washable and are non-allergenic. Created from siliconized, white, polyester fibers. These pillow inserts work well in covers you make yourself or those you purchase, and are perfect for use in living rooms, on sitting benches, or in kids’ room where they’ll likely get a lot of use. Size 12"