<p>MADE OF 100% Cotton: Our eye mask is made of soft and breathable cotton, which provide comfortable touch to your skin with no smell. Fit perfectly and will not fall off while sleeping.It's also very durable and will not fluff up even used it for a long time.Easy to clean by hand washing with a mild detergent.FULLY ADJUSTABLE STRAP:Unlike elastic straps ,the Overly-wide design of this mask does not put any pressure on your eyes or ears, making the contours perfectly fit the curve of any face.The smooth hidden Velcro can be adjusted in length easily to fits all head sizes for men ,women and children without sticks to hair and musses it up .NO WORRY WARRANTY: We promise a replacement if you're not satisfied. Any issues or needs please feel free to us, we will help to solve the problem within 12 hours.100% Light Blockage Thanks to its oversized build and soft cotton exterior, the Cotton Sleep Eye Mask by has a wide coverage area to prevent light from leaking in when you move.BEST SLEEP COMPANION: You could hardly feel that you are wearing anything when you fall asleep.improve sleep quality and guarantees healthy and pleasant sleep. Give you more energy to work and study. Suitable for different kinds of occasions such as napping, travel, relaxation, shift work, meditation etc for home, office.</p>