This nightcap is made of 100% silk and gently protects your hair. - Brand: INTIMISSIMI - Material: 100% SILK - Product Name: SILK NIGHT CAP - Japanese Product Name: シルクナイトキャップ (Silk Night Cap) - Color: Green I received this as a gift, but I already have one, so I'm selling it. The box was torn when I opened it for inspection, and there is a tear on the back of the box. INTIMISSIMI silk has a luxurious feel and is of excellent quality. Protect your hair with INTIMISSIMI's silk nightcap! Highly recommended!!