This is a three-piece set from Tokyo Soir, consisting of a tailored jacket, a collarless jacket, and a dress. It's a ceremonial suit that can be worn in two ways, suitable for Shichi-Go-San, entrance ceremonies, and graduation ceremonies. The size is LL, which is equivalent to a size 13. Please refer to the images borrowed from the official website for the materials and detailed measurements (accessories used in the official images are not included). Purchased about 5 years ago. The dress was worn twice, and each jacket was worn once. It has been dry cleaned. For those who understand that this is a used item, thank you for your consideration.