Side zipper. Elastic back. No wires. Label: BETTY BARCLAY Material: 65% rayon + 35% cotton Condition: Excellent vintage condition Size marked: German 40 French 42 Italian 46 Uk 14 Recommended size: M - petite L (?) Depending on bust/waistline. Model shown is a size small, height 164cm. Please check measurements thoroughly before purchasing Measurements taken lying flat: Shoulder: 25cm Strap: 16cm (front) / 22.5vm (back) - unadjustable ! Chest: 41cm Underbust: 37.5cm Hem: 33cm Vintage Cotton Blend Hot Red Bustier/ Mid-Drift/ Spaghetti Top/ M - Petite L