Size 11 I usually wear a size M. Zipper in the back. Please understand that this is a used item with wrinkles from long-term home storage. There is a strong mothball (naphthalene) smell. It will be folded small and shipped in simple packaging. Please comment before purchasing. Skirt, mourning dress, black, formal, Buddhist service, Showa retro, Western clothing, Japanese clothing, kimono, for those who like them.