KARLA TOPLusana Color: White 100% Cotton Poplin Machine Wash Cold Sweet with a little bit of swagger. This airy peplum tank keeps things light up top with a floaty silhouette and barely there straps, while the crisp cotton feel does all the heavy lifting. Equal parts polished and playful, it's the kind of top that makes jeans, linen pants, and last minute plans look intentionally styled.