DURABLE: Our new design of the cotton sleep mask is produced with highly strict standards to guard every procedure. It is flexible, foldable washable and can retrieve to its original after washing it. LIGHT WEIGHT &PORTABLE: Our sleep mask, which is made of Skin-friendly material, is lightweight and portable, so you almost barely notice that they're on your head. With the foldable design and a free carry bag, you can easily carry the sleep mask with you wherever at work, on travel or at home. DURABLE: Our new design of sleep mask is produced with highly strict standards to guard every procedure. It is flexible, foldable washable and can retrieve to its original after washing it. DURABLE: Our new design of sleep mask is produced with highly strict standards to guard every procedure. It is flexible, foldable washable and can retrieve to its original after washing it. PERFECT LIGHT BLOCKOUT&BREATHABLE: The "nose wing” design of the sleep mask can effectively block lights coming from the nose area so you can get sound sleep or relax your eyes whenever or wherever.