The covers of the Original Theraline pillow are made of exceptionally soft and high-quality cotton. Mercerisation and the particularly colour-fast reactive print give a fine sheen. All fabrics used by Theraline are solidly and accurately processed, pre-shrunk and thus meet even the highest demands for durability. Of course, all fabrics and colours meet the criteria of the Ökotex Standard 100 and are free of harmful substances.