open back "black calla" dress!!!Updated open back version of our Calla beauty. Still as gorgeous as a greek goddess. The dress is stretchy, so when choosing a size (if you fit the measurement chart) take your size, if you are above measurements size down and if you are below your regular size and measurements size down. ( for example: if you are waist 70cm, take size S; If waist 80cm M ) Please select your personal height as this dress is about 5cm longer than the heights mentioned.