1.Excellent Light-Blocking Expert: With the large size design, and the particular triangle wing, this night mask for sleeping perfectly blocks all light for your eyes, so you will enjoy a sound sleep all night. The travel sleep mask is a close guard for your sleep. It's so light that you can take it anywhere and wear it anytime when you want a lightless sleep 2.EKO-TEX Certified Silk: The 6A highest grade mulberry silk has been certified by EKO-TEX, which is used as the eye covers for sleeping double sided, and you will enjoy the experience of sleeping with pure mulberry silk, as it will bring your eyes comfort 3.Wonderful Experience of Pressureless: Mulberry silk is a product of nature. It is harmless, ultra soft, smooth and breathable. The sleep mask for lash extensions will not put any pressure on the eye balls, while your eyes will only feel comfortable. This organic sleep mask is a great sleep aid for insomnia 4.Premium Velcro : The sleep mask blackout is designed based on the concept of 'One ', so it fits most head circumferences and side-sleepers. The strap can be adjusted to your proper length through the Velcro, and the mask is not easy to fall off. The Velcro is of high quality that can withstand multiple pasting and tearing