Pillowflex Synthetic Down Pillow Form Insert, 18 by 18-Inch (2 Pack) Save when you buy the 2 pack! 65% polyester/35% cotton Made in US 18 Inch by 18 Inch Square Pillow Insert Ultra Solf/Machine Washable/Odorless/Hypoallergenic Karate chop look - Similar weight and feel as traditional down