j crew sweater dress A Super Soft + Cozy J.Crew Factory its finished with wide sleeves and ribbed trim at the neck Collection Metallic Open-weave Sweater-dress For

White Evening Waistcoat , made of Marcella cotton pique cut single or double-breasted

Suitable weaves include: Twill

Side cut outs with mesh inserts

It's science

I have found many formal 1920s style dresses online that are modern but with enough 1920s style to make them great choices for proms, black tie weddings, galas and other formal occasions (see below)

Being of Ukrainian background, I find some of them bizarre, and very un-European, such as the veil, the sequestering of the bride from the groom on the day of the wedding, the giving away of the bride, all of which suggest more a middle-eastern mindset in which the woman is treated as chattel, rather than an egalitarian European one