The M&S 2pk Ultimate Anti Allergy Pure Cotton Pillowcases in Silver Grey are a luxurious addition to any bedroom. Made from 100% cotton with a thread count of 200, these standard-sized pillowcases are machine washable and suitable for tumble drying. Perfect for those looking for comfort and a good night's sleep, these anti-allergy pillowcases from Marks and Spencer are a stylish and practical choice for any household.