Levinsohn Cooling Pillow Cover Soft and Comfortable Hypoallergenic with Mesh, Fits Standard to Queen Pillow, White 59% Polyester/40% Nylon/1% Spandex Imported THERMODYNAMIC COOL -Pillow cover has a cooling thermodynamic effect without refrigeration. LONG LASTING - Cover is cool to touch and keeps you comfortable all night long. QUILTED TOP LAYER -Soft quilted jacquard top layer wont make noise when you sleep. STRETCH MESH - Designed with stretch mesh side panels and zipper closure for easy on and off. HYPOALLERGENIC -Cooling pillow case is hypoallergenic and machine washable for easy care.