I bought this at Loft right before getting on the Shinkansen, thinking I'd use it on the train. I tried it for about an hour, but it didn't fit me, so I'm selling it. It's a three-dimensional type that doesn't press on the eyeballs, and it doesn't contain any hard materials. It has a ceramic charcoal sheet inside, giving it a crisp texture. As shown in photos 8 and 9, it has elastic and Velcro to help prevent slipping and keep it securely in place. In photo 10, the part that touches the nose has a fleece-like texture. In photo 14, the package opening has a Lami-clip zipper. I will put the eye mask in the package, seal it as is, and then pack it in an envelope for shipping.