The Cooling SoftCell Chill Select pillow combines customizable comfort options with the cooling benefits of PureCare's exclusive FRO rapid chill cooling fibers. Clinically proven to cool five times faster than traditional polyseter, FRO fibers will help you find relief from sleep heat throughout the night. Explore the Cooling SoftCell Chill Pillow: - Reversible, 2-in-1 construction: Enjoy the plush comfort of down without the allergen drawbacks with our Identically Down filled SoftCell pillow top. For a completely different feel, flip the pillow over for the reserved response of gel-coated memory foam. - Adjustable loft: Easily adjust the height of the SoftCell pillow by inserting or removing the Identically Down pillow featured in the center of the pillow. - Added Neck Support: The singular, elongated SoftCell features additional Identically Down fill for contoured neck and shoulder support. All Cooling pillows feature antimicrobial silver chloride to inhibit bacteria, mold, and mildew that cause deterioration, stains, and odors on this product.