This is polyester, but I purchased it from a long-established kimono shop. It comes with a襦袢 (undergarment), zori (sandals), a bag, and hair ornaments, so you can wear it right away if you have tabi (socks). I've given it a quick check, and it seems there are no stains except on the zori. I apologize if I missed anything. It looks good in photos and is cute. For events like Shichi-Go-San (Children's Day), renting a kimono can be stressful, and I was also concerned about hygiene since many children wear them. That's why I prepared this, and it's also useful for Hinamatsuri (Girl's Day) and New Year's, as you can easily dress your child in it. Also, it's reassuring to have your own kimono, especially with concerns like COVID-19. The box is size 100. Please understand that shipping and handling fees will be quite high.