Mybecca 18 X 18 Sham Stuffer Square Hypoallergenic Pillow Insert Polyester, White (First Quality) Made in USA Best for 17 x 17; 16 x 16 and 15x15 pillow cover Sold exclusively by MYBECCA Down-like comfort - odorless - washable - polyester cover Resilient / refluffable; for use in indoor or outdoor shams and decorative pillow covers