100%silk SUPER SOFT 100% Mulberry silk on both sides of the sleeping mask which is suitable for both men and women. The natural silk is warm in winter and cooling in summer. COMFORTABLE Fluffy silk-like wadding inside. The satin silk sleep mask has silk-like wadding between the surface. It has a very soft hand feeling, breathable and a good heat-insulation effect. With this lightweight sleeping eye mask, you will fall asleep easier. Adjustable Strap. On the one hand, the sleeping mask with adjustable strap will not be too tight to pressure on the optic nerve. On another hand, it guarantees the light proof and creates a good sleep environment, it helps you sleep longer in blackout space. You could enjoy your sleep anytime and anywhere, Prefect gift choice & - It is also an excellent gift not only for people with sleep disorders, but also for people who overuse of eyes, like long-term users of cell phones, TV, laptops. Portable packing. Each sleep mask has a bag, which is easy to carry with when you are in flight, train, or even in the office. The MMCTION sleep eye mask is made from 100% mulberry silk and filled with fluffy silk-like wadding. The 100% mulberry silk is not only chemical-free but contains skin-friendly protein fiber. With the lightweight silk sleep mask, your eyes could get completely relaxed during sleeping. The sleep mask has an adjustable strap, which can not only release pressure on your eye but also create a blackout environment for sleeping. And each sleep mask has a small bag which is portable, so that you could enjoy the sleep anytime and anywhere. MMCTION SLEEP MASK is a perfect gift choice for you loved one.