VIONNET Ruched Asymmetric Dress Red NWT FR42 runs small like US 6

Red silk blend ruched asymmetric dress from Vionnet. Made in Italy Composition Outer: Viscose 96%, Spandex/Elastane 4% Lining: Silk 100% Washing instructions Dry Clean Only Listed size FR 42 on tag but fits smaller 28-29 inch waist (some slight stretch) From waist to bottom ~26.5 inches Armpit to arm pit ~18-19 inches (some slight stretch) Purchased via Farfetch