Pillows & Fibers Inc.'s luxurious 10/90 insert is made with 10% down and 90% feather. Pillows & Fibers Inc. use only the finest white goose and feather blends to ensure quality pillows. Pillows & Fibers Inc. submit each and every feather through a thorough cleaning and sterilization process so that you can enjoy your feather goose-down pillow without suffering from any allergic reactions.