The Batwing Pillow and Cover provides particularly good support for the lumbar area when sitting up in bed or in a large armchair.The back section of the pillow is very well padded, like a conventional cushion but the wings provide additional lateral support, keeping the user cradled in a comfortable and healthy upright position. The Batwing Pillow Cover is made from a 50-50 blend of cotton and polyester making it soft, easy to clean and it will hold its shape well even after repeated washing. If you would like an additional cover, you can click here to buy separately.