This piece belongs to the Ralph Lauren Purple Label Collection, the highest tier of their offerings. It is a heavy weave, 100% cotton, which makes it perfect for cool days and evenings, perhaps walking along the shore on a chilly summer day. The piece is close-fitting and small. The model it is shown on is a size 6. I wore it when I was a size 4. The label shows it as M. I took good care of it but I did wear it so I am pricing it lower than otherwise. It’s a great, classic style. Here is how Ralph Lauren goes: Purple Label Collection. Black Label Collection, Ralph Lauren, Ralph.