This is a Theory collarless jacket. The color is a unique navy, characteristic of Theory. The size is 00. I wore it once (for about half a day), but there are no stains or damage. The cut of the collarless part is impressive and the design is unique. When you fold back the sleeves, the elegant striped lining, typical of Theory, is revealed, and it's also lovely to wear them folded back. I purchased it at a department store for 44,000 yen. The images show a jacket of the same shape and made of the exact same fabric, but the images are from 2025. Thank you.