by a sleep specialist at the University of School of Eye mask with zero gravity fit and complete light blocking performance standards ISO and FDA For

[Quality Inspected by Japanese Domestic Inspection Agencies] This product has undergone rigorous quality inspections by domestic inspection agencies and meets all standards. In the JIS L1041 test for free formaldehyde, the product meets the standard of 20mg/kg or less (even if no formaldehyde is detected, the standard value is sometimes written as "20 or less"). This means that users do not need to worry about the health risks of formaldehyde, so you can use it with confidence. [Carefully selected materials] Made with highly elastic double Lycra fabric and memory foam that boasts outstanding cushioning, it can change shape to fit any face, providing an exquisite fit and relaxation effect. [Outstanding light blocking] The light blocking rate is an astonishing 99.99% as verified by JIS L1055, a test conducted by a domestic testing agency. This high light blocking performance almost completely blocks external light, providing consistent darkness day or night. You can use it with confidence while traveling or during breaks during the day. [Designed for long-term use] The three-dimensional design avoids pressure on the eyeballs, ensures sufficient space around the eyes, and is designed so that the eyes do not touch the eyes directly even when blinking. The adjustment strap also uses metal fittings that do not put strain on the ears. By devising the shape and mounting position of the metal fittings, interference around the ears is reduced, making it difficult to feel pain or pressure even with long-term use. This maintains a comfortable fit without eye fatigue or discomfort even with long-term use. [Recommended as a gift] The package is simple and stylish. It also comes with an instruction manual and a storage bag, so it is highly recommended as a gift. Please use it as a gift for someone special, or as a small gift for friends and family. [Can be washed and reused] It has been tested for washing fastness by a domestic testing agency and its durability against washing according to JIS L0844, and it has been guaranteed to meet the standard values and maintain its quality even after washing. Since it has passed all of these quality tests, you can use it with confidence. Please refer to the instruction manual included for washing instructions. [Quality inspection by a Japanese domestic inspection agency] It has undergone strict quality inspection by a domestic inspection agency and has cleared all standards. In the JIS L1041 test for free formaldehyde, it has cleared the standard value of 20 mg/kg or less (even if it is not detected at all, it may be written as "20 or less"). This means that users do not need to worry about the health risks caused by formaldehyde, so you can use it with confidence. [Special materials] By using double Lycra fabric with high elasticity and memory foam with outstanding cushioning, it changes shape to fit any face shape, providing an excellent fit and relaxation effect. [Outstanding light blocking] The light blocking rate verified by JIS L1055, a test based on a domestic inspection agency, is an amazing 99.99%. This high light blocking performance almost completely blocks external light, providing stable darkness regardless of day or night. You can use it with confidence while traveling or during daytime breaks. [Design that does not bother you even for long periods of time] A three-dimensional design is adopted to avoid pressure on the eyeball, and sufficient space is secured around the eyes, so that the eye does not directly touch the eye even when blinking. The structure is simple and easy to use. The adjustable strap also uses metal fittings that do not put strain on the ears. The shape and mounting position of the metal fittings have been designed to reduce interference around the ears, making it less likely to cause pain or pressure even when used for long periods of time. This allows you to maintain a comfortable fit without feeling eye fatigue or discomfort even when used for long periods of time. [Recommended as a gift] The package is simple and highly designed. It also comes with an instruction manual and a storage bag, so it is highly recommended as a gift. Please use it as a gift for someone special, or as a small gift for friends and family. [Can be washed and used repeatedly] It has been tested for washing fastness by a domestic testing agency and durability against washing according to JIS L0844, and it is guaranteed that the quality will be maintained even after washing. Since all of these quality tests have been cleared, you can use it with confidence. Please refer to the included instruction manual for washing instructions.