For those who prefer a firmer pillow, the feathers in this blended-fill pillow feature natural "spines," which make for a more substantial feel. The core support of the feathers is wrapped in the fluffy luxury of domestic duck down for a superior-quality pillow with nothing but pure white fill. The preshrunk cambric cotton shell is closely woven to keep the fill inside. Down Alternative Bed Pillows and Premium Down Bed Pillows also available.100% cambric cotton shell (230-thread-count). 80% white duck feather, 20% snow-white domestic down. Finished with double-needle stitching and cotton cording. Machine wash in warm water, like colors, no bleach. Tumble dry, medium heat until thoroughly dry. For best results, professional laundering is recommended. Do not dry clean. Made in USA of Domestic and Imported Materials and China.