Purchased from Quatre Saisons. Worn a few times over a T-shirt. No size tag. I usually wear a size M, so I've listed it as M. Made of 100% cotton, so it's soft, thin, and slightly see-through. The stitching on the collar and chest area has some fraying from the time of purchase. Length: 95cm Width: 40cm Shoulder width: 35cm Please note that these are amateur measurements, so there may be some errors. Please consider this item, understanding that it is a pre-owned item and has been stored at home.