Reposhing this item I purchased from @emerieann. This is a size small but I couldn't get it zip all the up. I do have kind of a wider back however. I'd estimate sizes 0-2 would work, possibly a size 4. I personally am somewhere between a 2 and a 4. There's nothing wrong with it and I'm SO bummed it doesn't fit. Oh....off shoulder sleeves and a sexy little side slit!! Questions? Leave a comment below!