Nightcap nude lace dress with cap sleeves NWT

Nightcap NWT nude lace dress with tag attached. Size three per Nightcap clothing chart is a US M 6-8 size. Bust 35"-36", waist 28"-29", hips 39"-40" . The dress in my opinion fits rather small more like a 4-6 size. It measures when flat bust pit to pit flat 14". Waist flat 12". Hips flat 14". The length measures 33".