Our Revive memory fiber pillow is wrapped in a soft and supple 100% cotton cover that encases our unique spring-shaped spiral memory fiber. Enjoy the breathability of an all-memory fiber fill that provides foam-like comfort, additional airflow, and cooling benefits from the moisture-wicking fibers. This excellent medium support pillow is where you'll want to lay your head night after night. Features & Benefits: Cover Fabric: 100% Cotton, 300 Thread Count, 130 GSM Filling Material: 100% cooling memory polyester fiber Fabric Highlights: Hypoallergenic Medium Firmness Sizes: Standard Pillow: 16" x 25" King Pillow: 16" x 35"