This pillowcase is crafted from 100% 22-momme mulberry silk—the same premium fabric used in SLIP products. Designed with an envelope closure, it eliminates the risk of damage during washing, ensuring longevity and ease of care. Fabric: 100% mulberry silk Thickness: 22 momme Thread Count: 600 Closure Type: Envelope Size: Queen (50x75cm or 20x30inch) To ensure faster delivery, we ship from our 🇺🇸 Los Angeles or 🇨🇦 Toronto warehouse, depending on your location. Free Shipping when you buy two.