1. 100% BLOCK OUT LIGHT : Real rather than hidden “nose bridge ”design , no gap from any direction . No worry about side sleeping. <br>2. NO PRESSURE ON EYES: 3D ergonomic design , concave molded instead of flat design , more “breathable ” for face and eyes. Will not ruin makeup.<br> 3. SKIN-FRIENDLY MATERIAL: Bra fabrics with memory foam inside, more comfortable to touch. Light , soft and healthy.<br> 4. CONVENIENT TO WEAR: Imported soft velcro with elastic strap, not catch hair, easier to adjust to ideal position than hard buckle strap. Fit all head circumferences. <br>5. WASHABLE & DURABLE: Advanced hot pressing integrated and sewing process, not be apart easily as glue process. Long life time when use.<br> 6. WIDELY USED: Buying without hesitation，Hamada sleep mask is smart choice for sleep, travel, yoga nap, game.