Isotonic Memory Foam Pillow, Traditional 100% Polyester Made in the USA and Imported Conventional pillow Size and shape Features active air Technology for increased air circulation Zippered knitted cover is machine washable Hypoallergenic and Made in the USA Isotonic and active air Technology are registered in U.S. Patent and trademark office Traditional pillow size and shape Features Active Air Technology for increased air circulation Zippered knitted cover is machine washable; spot clean foam Measures 18 x 24 inches Hypoallergenic Made in the USA and Imported SleepBetter, Isotonic, and Active Air Technology are registered Trademarks of Carpenter Co.