SleepBetter Isotonic Comfortlux Side Sleeper Memory Foam Pillow 100% Polyester Made in the USA and Imported 2-Inch gusset for side sleepers supports head and neck 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