ISO-PEDIC Stay Cool Zippered Pillow Protector: King Size, Quick Dry Microfiber (2) 100% Microfiber Imported ISO-Pedic Quick Dry, Stay Cool Pillow Protector King Size: 20in x 36in Extra Soft and Smooth Microfiber Discreet and Durable Zippered Closure Material: 100% Microfiber. Care: Machine Washable; Tumble Dry