70% Viscose, 30% Polyester Contents & measurements: This gift set includes 4 King-size satin pillowcases, each measuring 20" x 40". Deluxe quality with elegant stitching complements any bedding Hair and skin care: Silky-smooth satin pillowcases reduce friction between hair and pillow, helping to minimize hair damage and protect skin from sleep lines. Absorbs less moisture, reducing breakouts Color options: A variety of colors available to complement your decor. Easy-to-use hidden zipper closure design prevents slipping and ensures a perfect fit. We recommend washing before first use. Machine wash cold, gentle cycle Gift-giving option: A beautifully packaged set, perfect for any occasion. Pair with our 4-Piece Satin Sheet Set for an ultimate gift. Ideal for travel or as a spare Material: Made of viscose rayon, providing a breathable, silky-smooth, and soft texture for a comfortable night's sleep