This DUHKP unisex sleep mask is crafted with premium double-sided satin fabric, which brings ultra-soft and skin-friendly touch for long-time wearing. It features 99% light blocking performance to create a completely dark environment, effectively helping you fall asleep faster and enjoy deep rest. Adopting ergonomic pressure-free design, it will not squeeze your eyes or leave marks on your face. The flexible adjustable elastic strap fits different head sizes perfectly and stays stable during use. This lightweight eye cover is ideal for home sleep, office naps, travel, night shifts and outdoor rest. 99% Full Light Blocking for Deep Sleep This sleep mask achieves 99% light blocking rate to block all ambient light.Whether you sleep during the day, work night shifts or rest in a bright environment, it creates a dark sleeping space to help you relieve fatigue and improve sleep quality greatly. Premium Double-Sided Satin Fabric Both sides are made of high-quality satin material with delicate texture.The fabric is smooth, breathable and gentle to facial skin.Unlike rough ordinary fabrics, it brings a luxurious soft touch and won’t cause discomfort even after wearing all night. Ergonomic Pressure-Free Wearing Design Designed with a zero-pressure structure around the eye area.It fits the contour of your eyes naturally without squeezing or pressing on your eyeballs.You will not feel tight or have indentations on your skin after long-time use, suitable for side sleepers and all sleeping postures. Flexible Adjustable Elastic Strap Comes with an adjustable elastic strap, you can easily tighten or loosen it to match different head sizes.The strap has proper elasticity, which is not easy to slip off during turning over while sleeping, and will not cause tightness around your head. Unisex & Multi-Scene Application This eye mask is designed for both men and women with a universal style. It is lightweight and portable, perfect for daily bedtime use at home, lunch breaks in the office, long-distance travel on planes or trains, and rest during night shifts.