"Allersoft" allergen control luxury bedding uses the latest microfiber technology in the construction of fabric which allows for total breathability while providing ultimate in dust allergy relief and protection. These mattress covers and pillow protectors provide maximum protection without vinyl or other rigid membranes! Available in the following sizes: Twin, Full, Queen and King. Fits up to a 15" deep mattress. Pillow cover available in Standard, Queen, or King size. Zippered encasing. Machine wash. Fabric content: 75% polyester/25% cotton (feels like the finest cotton linen).