Black Zara Dress (Size XS – Fits XS to M) Barely worn and in excellent condition. This midi dress from Zara features a stretchy smocked bodice, adjustable tie-up shoulder straps, a flowy tiered design and a side pockets. Though labeled XS, the flexible fit comfortably suits sizes XS to M. Effortless, flattering, and easy to style — perfect for any occasion.