Thank you for viewing. Made of highly elastic swimwear material, so it's gentle on the ears♪ 3D structure conforms to the face line, creating a snug fit for comfortable wear! Doesn't lose its shape after washing, so it can be washed and reused. Nikky Co., Ltd. FITMASK M size Washable UV cut: UPF50+ 2 pieces per pack x 10 packs, total 20 pieces Instant purchase OK. Please comment if you have any questions. * Please refrain from purchasing if you are sensitive or seeking perfection. Shipped with only waterproof measures, without bubble wrap. Will be adjusted to fit the packaging size. Recycled materials may be used for packaging. 251130