Black single layer fabric, 100% Viscose. Two standard sizes, S/M have a maximum bust measurement of 105 cm and M/L have a maximum bust measurement of 126 cm. I am here wearing size S/M and I have a bust measurement of 94 cm. The dress in these pictures has a U-neckline 21 cm deep and a V-neckline 24 cm deep. Can be ordered in White, Black, Gold, and Granite Gray.