Twiggy's mysterious Peacock sister is also reversible front to back as can be seen in the images on the lovely Lydiane. 
The underlayer is a Peacock blue Viscose/Acetate which shines through the delicate Chantilly eyelash lace outer.
The concealed zip allows you to adjust the depth of "V" whether worn to front or back, with this element and the satin obi belt "Ms Peacock" is a stunning versatile wardrobe highlight.
 
SIZE: Given the volume which falls from the shoulder this dress is practically "One size fits all"