Saint Laurent sheer lace top peplum dress new! On trend for ‘23 US6, fits like 4

Show-stopping Saint Laurent black sheath dress with sheer lace top and peplum, with black heavier silk lined shirt. Gorgeous dress, much more flattering on than I would have expected. Top is sheer lace, under garment shown on model pics is not part of this garment. Size: French 38=US 6 Measurements laying flat are: Arm pit to arm pit measures 17 in Waist 13.5 in Hip: 18 in the Saint Laurent size guide also gives these as the bust/waist/hip measurements for this size: In inches: 34.3/26.4/36.6 Personally I feel it runs small, more like a 4. My measurements are 31/26/33 and it fits everywhere well, but the hip- it’s loose in the hip for my size As returns are NOT allowed on poshmark, please know your size in this brand prior to purchase. I am happy to provide any additional measurements upon request, however It is the buyer’s responsibility to know their size. Please take into account measurements provided are taken by hand so please allow for variability due to seam and material thickness, stretch, age, wear, etc. Also as poshmark is a market place for pre-loved and older garments, due to vanity sizing a garment from the same designer made 10 years ago may not fit exactly like a new garment made by that designer today. Always ask questions if you are uncertain. Brand size charts provided as a courtesy when I can find them, but are not always 100% accurate