This is the ADRER Special Gimmick Shirt. I bought it but barely wore it, and it's been stored away. The size is XS. 【Description】 Features a yoke and waist belt details used in trench coats. The waist belt can be fastened in the front or left hanging in the back, offering versatile styling options. It is also removable, allowing for various ways to wear it. #ADRER Adler