The Original THERALINE? Maternity and Nursing Pillow has a filling made of millions of micro beads which are as light as a feather. This amazing filling conforms to the shape of your body, no matter what position you are in... whether lying down or sitting up and, unusual for a pillow, it always remains firmly in place without giving way. It is antiallergenic, warm and breathable and can be washed at 60? C.THERALINE? pillow covers are made of highly colour-fast and mercerized extra-soft twill or jersey cotton. All materials we use are accurately fitting, pre-shrunk and thus satisfy even the highest requirements regarding durability. Of course, all materials are free of harmful substances.Available fabric qualities for covers:TwillStandard cottonJerseyYarn DyedMicroplush