Hollowfibre Material: Soft hollowfibre material with a polycotton overlay for extra comfort. Anti Allergenic: Free from material that causes allergies. Machine Washable: Simply put them in the washing machine for easy cleaning. Union Jack Pillows: Get your hands on this 4-pack of Union Jack pillows. Tumble Drying: Can also be tumble dried for convenience. 4-Pack Union Jack Pillows | Living Social | Living Social