Zimmermann uses special sizing. Please see
An airy Zimmermann dress, detailed with lace trim and raised polka dots. Beaded spaghetti straps tie at the shoulders, and a matching tie refines the waist. The uneven hem dips lower in back. Long sleeves and covered elastic cuffs. Lined.
Fabric: Crinkled chiffon.
Shell: 100% silk.
Lining: 100% polyester.
Length 1: 45in / 114cm, from shoulder to front hem
Length 2: 53.25in / 135cm, from shoulder to back hem
Measurements from size 1