【New & Unused】 nerugoo Eye Mask for Sleep - 99.99% Light Blocking, Sleep Aid, 3D Three-Dimensional Eye Dome Structure 【MONOQLO Annual Overall 2024 Best Buy Award Winner】 Domestic Inspection Tested 【Good Design Award Winner】 Developed based on Japanese skeletal structure and sleep science, achieving a non-slip fit and outstanding light-blocking performance. Provides a comfortable sleep environment with a pleasant fit. 【99.9% Light Blocking】 Designed to shut out light without worry, preventing light leakage from the outside. Experience true darkness anytime, anywhere, allowing for high-quality and restful sleep. Perfect for nighttime use, travel, and naps. 【Ergonomic Design】 The 3D three-dimensional structure and close fit conform perfectly to the face, providing a comfortable feel without pressure. It fits naturally along the curves of the face, so it won't slip during use and is comfortable even after long periods of wear. 【Highly Adhesive, Like It's Sticking】 Uses high-quality inner material used in sportswear, which is not only gentle on the skin but also adheres closely. It also has excellent breathability, making it comfortable to use in all seasons, preventing stuffiness even in hot weather or cool rooms.