PolyesterMade in USADown-like comfort - Odorless , Stuff your decorative throw pillow cover or Euro pillow sham case and add a little flair to your bed. Resilient / Refluffable , Pack more cushion to your couch or bed for lumbar support or just decoration. Measurements are seam to seam. Pillow inserts should measure 2 to 3 inches larger (length and height) than pillow cover. After filling, pillow will decrease about 10% - 15% in size. Order one size up!