What can I wear for my engagement party that is slim fitting and midi but elegant?

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Etro

Scalloped guipure lace midi dress

$675

$2,250

Net-a-Porter

Markarian

Acacia floral brocade corset dress

$1,995

Mytheresa

Black Halo

Marla 2 Piece Midi Dress

$415

Shopbop

Destree

Destree Franz Asymmetric Faille Midi Dress

$135

$895

Outnet

Emilia Wickstead

Cleo open-back cloqué midi dress

$587

$1,955

Net-a-Porter

Roland Mouret

Wool cocktail dress

$801

$1,145

Mytheresa

self-portrait

Gathered satin midi dress

$390

$650

Net-a-Porter

THEIA

Theia Rae Cloqué-Jacquard Midi Dress

$298

$595

Outnet

Roland Mouret

Cannock stretch-crêpe dress

$546

$1,365

Mytheresa

Solace London

Ellison satin cocktail dress

$584

$730

Mytheresa

Staud

Zoe floral brocade satin midi dress

$550

Mytheresa

Rebecca Vallance

Amore off-shoulder crêpe midi dress

$483

$690

Mytheresa

16Arlington

16Arlington Kira One-Shoulder Draped Crepe Midi Dress

$420

$840

Outnet

Emilia Wickstead

Vero open-back duchesse-satin midi dress

$591

$1,970

Net-a-Porter

Adam Lippes

Blaire metallic stretch-tweed midi dress

$747

$2,490

Net-a-Porter

Roland Mouret

Embellished wool and silk midi dress

$1,100

$1,375

Mytheresa

Emilia Wickstead

Kissa jacquard midi dress

$1,674

$2,790

Mytheresa

Maticevski

Singular open-back cocktail dress

$1,277

$1,825

Mytheresa

Rebecca Vallance

Cameron embellished crepe midi dress

$237

$790

Net-a-Porter

Emilia Wickstead

Arina pleated crêpe midi dress

$638

$1,595

Mytheresa

BRAND RECOMMENDATION

Rebecca Vallance

Rebecca Vallance is an inspired choice for a slim-fitting elegant midi dress—her designs are sleek and tailored, offering European sophistication with a fresh twist. The brand’s structured midi dresses are a modern favorite for engagement parties, standing out with their attention to fit and statement details.

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Rebecca Vallance

Amore off-shoulder crêpe midi dress

$483

$690

Mytheresa

Rebecca Vallance

Cameron embellished crepe midi dress

$237

$790

Net-a-Porter

Rebecca Vallance

Merlot ruched satin midi dress

$703

$1,005

Mytheresa

Rebecca Vallance

Embellished lace midi dress

$791

$1,130

Mytheresa

Rebecca Vallance

Petra floral jacquard cocktail dress

$564

$940

Mytheresa

Rebecca Vallance

Bridal Elora midi dress

$731

$1,045

Mytheresa

Rebecca Vallance

Augustine gathered satin midi dress

$209

$695

Net-a-Porter

Rebecca Vallance

Zelda bow-detailed sequined satin midi dress

$276

$920

Net-a-Porter

Rebecca Vallance

Amore off-shoulder crêpe midi dress

$483

$690

Mytheresa

Rebecca Vallance

Cameron embellished crepe midi dress

$237

$790

Net-a-Porter

Rebecca Vallance

Merlot ruched satin midi dress

$703

$1,005

Mytheresa

Rebecca Vallance

Embellished lace midi dress

$791

$1,130

Mytheresa

Rebecca Vallance

Petra floral jacquard cocktail dress

$564

$940

Mytheresa

Rebecca Vallance

Bridal Elora midi dress

$731

$1,045

Mytheresa

Rebecca Vallance

Augustine gathered satin midi dress

$209

$695

Net-a-Porter

Rebecca Vallance

Zelda bow-detailed sequined satin midi dress

$276

$920

Net-a-Porter

BRAND RECOMMENDATION

Rebecca Vallance

Amore off-shoulder crêpe midi dress

$483

$690

Mytheresa

Rebecca Vallance

Cameron embellished crepe midi dress

$237

$790

Net-a-Porter

Rebecca Vallance

Merlot ruched satin midi dress

$703

$1,005

Mytheresa

Rebecca Vallance

Embellished lace midi dress

$791

$1,130

Mytheresa

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Giambattista Valli

Bow-detail crêpe midi dress

$1,485

$2,970

Mytheresa

Jenny Packham

Jenny Packham Aurelia Embellished Tulle and Crepe Midi Dress

$963

$2,750

Outnet

Cult Gaia

River cutout embellished stretch-knit midi dress

$399

$798

Net-a-Porter

Herve Leger

Hervé Léger Charlene Mesh-Trimmed Bandage Midi Dress

$478

$1,195

Outnet

Monique Lhuillier

Monique Lhuillier One-Shoulder Draped Faille Midi Dress

$1,518

$3,795

Outnet

Rebecca Vallance

Merlot ruched satin midi dress

$703

$1,005

Mytheresa

Jenny Packham

Firefly crystal-embellished crepe gown

$565

$1,883

Net-a-Porter

Roksanda

Maite caped midi dress

$2,150

Mytheresa

Rebecca Vallance

Embellished lace midi dress

$791

$1,130

Mytheresa

Emilia Wickstead

Tippi floral-print satin midi dress

$644

$2,145

Net-a-Porter

self-portrait

Belted lace midi dress

$695

Mytheresa

SABINA BILENKO

Lisa pleated embellished cady midi dress

$1,044

$3,480

Net-a-Porter

Tom Ford

TOM FORD Cutout Stretch-Knit Halterneck Midi Dress

$567

$1,890

Outnet

Adriana Degreas

Strapless midi dress

$500

$715

Mytheresa

Erdem

Bow-detailed bouclé-tweed midi dress

$674

$2,245

Net-a-Porter

Rebecca Vallance

Petra floral jacquard cocktail dress

$564

$940

Mytheresa

Badgley Mischka

Badgley Mischka Belted Gazar Midi Dress

$220

$440

Outnet

House of Harlow 1960

X REVOLVE Milo Dress

$168

$178

Revolve

Zimmermann

Rebellion floral linen and silk midi dress

$2,100

Mytheresa

Roksanda

Maite crêpe cocktail dress

$2,150

Mytheresa

Slim-Fitting, Elegant Midi Dresses for Engagement Party

For an engagement party, a slim-fitting midi dress strikes the perfect balance between sophistication and celebration. These picks offer elegant tailoring, flattering fits, and thoughtful details—ranging from classic satins to contemporary drapes—ensuring a graceful silhouette for your special occasion. Let me know your preferred color, budget, or if you want to lean bridal or add any trend-driven touches!