This piece is called, the Lady Jacket, (by Lorick) which can also be worn as a dress...I am truly in LOVE! This look is a masterpiece! The neck detail is interesting because it can be worn as a scarf or a hood, w which I adore. (Side note: this designer is always featured on Gossip Girl)
Check out the site Gargyle, this is my new fave site for all things classic-preppy.