It's a size M. I bought it a few years ago at BEAMS BOY. It's been customized for women, so it's a bit shorter. It looks cute with long skirts or wide pants. It's also cute to wear a striped shirt underneath and let it peek out. As you can see in the photos, I used to wear it with the cuffs folded up, so there's some fraying. Please see the photos for stains. Sleeve Length: Short Sleeve Color: Beige Season: Summer, Spring Shoulder Width/Body Width/Sleeve Length/Length Shoulder Width: 49cm Body Width: 59cm Sleeve Length: 23cm Length: 60cm Color: Beige系 (Beige-based) Sleeve Length: Short Sleeve Season: Spring, Summer