Double-sided silk: the double-sided fabric of the sleeping mask is seamlessly stitched by hand, breathable and comfortable to wear, helping to release stress on your eyes, It is soft and smooth to make you feel like you're in a spa and keep you relaxed, this silk sleep mask can absorb healthy oxygen while maintaining dry air, allowing you to enter deep sleep comfortably Elastic strap: this sleeping mask is designed with an elastic head strap to fit the bridge of your nose, so the blindfold is not easy to fall off, and it is also lightweight for a right fit on you face to make you enjoy a wonderful night, providing a nice sleep environment that sheds your eyes from light, no matter where you are in bed, on airplanes, for travel, hotels, trips, camping trips, trains, or any other place