The Simple Dress by Deiji Studios in black.

A relaxed mid-length dress features a gathered wide soft square neckline with adjustable straps tied at the back. Wear two different ways with the straps tied straight to the back neckline or behind the neck for a halter style.

Made from GOTS certified organic cotton poplin.

SIZE AND FIT
S - 36
M - 38
L - 40

Model is a size 34/36, and wears the size S