The cotton lining of this pillow provides exceptional softness when in contact with the skin, enveloping you in a layer of comfort and freshness throughout the night. The Ultra Down fill adds an extra layer of softness and support, creating a feeling of weightlessness when lying on this pillow. Each Ultra Down fiber is designed to fit the unique shape of your head and neck, providing personalized support and supreme comfort. Recommendations: Do not wash. Ventilate periodically. It is recommended to use a protective lining which will give the pillow more useful life.