Details Material Silk Special Feature Ergonomic, Lightweight, Adjustable Strap, Complete Blackout, Breathable Age Range (Description) Adult Material Feature Natural 100% Blackout: Enjoy uninterrupted sleep in a Healthier & Easier Way. JroyJoy eye sleep masks adopt ergonomic design which effectively blocks light to ensure you & your family a deep uninterrupted sleep. Oue eye masks eliminate fatigue to fall alsleep faster, maximize your sleeping time & improve your sleep quality. Ultra-soft Satin Silk Material: Our sleep masks are crafted with ultra-soft satin material that cause less friction between delicate skin & sleep mask. Satin Silk is also exceptionally smooth & soft, easy on your skin without causing creases around your eyes. Minimize potential signs of aging, especially for stomach sleepers as it protects skin around eye area utmostly. Adjustable Elastic Strap-fit All Head Size: The sleep mask is designed to fit all head sizs with adjustable straps, no need to worry about catching hair. Lightweight & Breathable: Using with naturally breathable and skin-friendly material, our satin silk mask is extremely comfortable and lightweight, which bring less pressure and less friction to our eyes and skin. Reduce eye fatigue and improve your sleeping quality. Fall Asleep Fast & Sleep Better: Pull on your sleep mask during red-eye flights & long airport layovers to get a relaxing time.