Size 8. Dress is pinned on Model who is size 2-4.
Waist is 29 inches, stretchy back can be adjustable to chest sizes up to 40 inches.
Model's Measurements: for reference:
Wears size 0-6
Height 5.5
Shoulder 15.5
Chest 32
Waist 26
Mid Waist 30 1 inch down belly button
Hip 36