Pure silk. It feels very soft against the skin. Made from the lining of a kimono. It's tube-shaped. 41 x 65 cm Insert 50 cm of elastic. Please give it a try! Silk is very good for your hair. I've been using it for a long time too. Please refrain from making claims. There may be wrinkles, holes from unraveling, and stains. Because it is a remake of old kimonos, there may be odors. Also, please refrain from purchasing if you have a different image than expected, or if you are a perfectionist. Because it was made by unraveling and washing old kimonos, there may be stains, thread marks, abrasions, and scorch wrinkles. We appreciate your understanding of these amateur remakes from old fabrics. I am a beginner at handmade items. There may be distortions, and I am not very skilled, but I would be happy if someone could use them. We offer a discount for combined shipping on remade items. We are waiting for your requests.