Product Detail: • Material: 19MM (300 Thread Count) Combined Silk. Silk fibers: Muga, Eri, Terse, Charmeuse, Mulberry • Closure: Envelope closure • Natural silk fibers allow skin to breathe and minimize irritation • Hypoallergenic, extra soft, and smooth pillowcase designed to target beauty concerns, such as: wrinkling skin and frizzy hair • Waking up with perfect skin and dreamy hair is no longer a myth   Care: • Hand wash or machine wash in a mesh bag on delicate cycle. • Tumble dry with no heat or hang dry if possible.