MATERIALS AND CRAFTSMANSHIP: Our sleep mask features a smooth and comfortable exterior crafted from high-quality silk. The interior is filled with soft, breathable cotton, making both materials eco-friendly and non-allergenic for your skin. Experience a sophisticated weave and touch that enhances your overall comfort. WIDE ADJUSTMENT RANGE: The adjustable buckle ensures a customizable fit for various head sizes. The strap offers excellent elasticity, comfortably accommodating head circumferences from 48-64CM (18.9''-25.2''). This versatile sizing makes it suitable for both children and adults, regardless of head size. BLOCKS OUT ALL LIGHT: Sensitive to light? Our sleep mask is designed to contour perfectly around your eyes and nose, effectively blocking out light from all angles. Enjoy a truly dark environment, allowing you to sleep soundly, undisturbed by surrounding brightness. SOFT AND COMFORTABLE: Weighing only 15g, this sleep mask is made from lightweight and soft materials, providing exceptional comfort. Whether you sleep on your back or side, you’ll hardly notice it’s there, leading to a significantly improved sleep experience. MULTIPLE USES: This package includes two black sleep masks for both men and women. Use it during bedtime, on flights, long car journeys, at the office, or even as an eye mask during party games. It is particularly useful in situations where you need to block light, such as when your partner wants to read while you sleep.