OPTIMIZED ADJUSTMENT FOR CHILDREN: In the development of our sleeping masks, we give the utmost importance to a good adjustment for children. Our eye masks for girls and boys should not slide at night and do not leave pressure marks and do not press when used. Block 100% light: your boys are light sensitive at night and can only fall asleep when Our sleeping mask is dark then for children is perfect, since it blocks 100% artificial light and of the day and is very soft and cozy. Perfect traveling mask for children for the plane, the train or in the car. High quality materials: since it is their children and their safety and well -being, we make sure to use only the best materials for our masks for sleeping. 100% free of harmful and breathable substances. Without unpleasant and washable odors