Our pillowcase(not including the pillow) is made of 100% polyester silky satin, which ensures softness and breathability for ultimate all-night comfort. The satin pillowcases design with envelope closure end is easy to replace. Besides, no zipper design allows easy machine washing without unintentional snagging. The satin texture protects your skin against the facial sleep lines which may become deep wrinkles and prevents hair from breakage, tangle, and loss by reducing hair's constantly rub against a pillow. Our pillowcases do not contain allergens and chemicals. They are the perfect choice for those suffering from asthma, allergies, and other respiratory issues.