◎ Instant purchase OK Aero Silk Washable Silk Pillowcase - Set of 2 Color: Brown Size: 50 x 65 cm Material: 85% Silk, 15% Polyester * Use a pressing cloth when ironing * Use a laundry net * Use neutral detergent Purchased from Rakuten shop, but it's a new, unused item because I ordered the wrong size. Will be shipped via Mercari delivery service. [Product Features] ・Reduces friction damage while sleeping. ・A melting-soft texture that clings to the skin. ・Gentle on sensitive and dry skin, with a smooth fabric that prevents static and doesn't feel scratchy. ・Comfortable warmth even in winter (not too cold, with moderate insulation.) ・Easy-care silk for everyday use.