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Long Formal Party Dresses & Formal Prom Gowns

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Ieena Duggal - 49287I Glitter Tiered A-Line Evening Gown In BrownIeena Duggal 49287 Nutmeg
Ieena Duggal 49287 Sale priceCHF 180 Regular priceCHF 334
Clarisse 810554 Pale LilacClarisse 810554 Pale Lilac
Clarisse 810554 Sale priceCHF 370
Elizabeth K GL1537Elizabeth K GL1537
Elizabeth K GL1537 Sale priceCHF 266 Regular priceCHF 531
Jovani 22792 BlueJovani 22792 Blue
Jovani 22792 Sale priceCHF 786
Terani Couture 252M5309Terani Couture 252M5309
Terani Couture 252M5309 Sale priceCHF 615
Ellie Wilde EW37106Ellie Wilde EW37106
Ellie Wilde EW37106 Sale priceCHF 382
Clarisse 62219Clarisse 62219
Clarisse 62219 Sale priceCHF 430
Mac Duggal 13001 BlackMac Duggal 13001 Black
Mac Duggal 13001 Sale priceCHF 645
La Femme - 27989 V Neck Trumpet Dress In PinkLa Femme - 27989 V Neck Trumpet Dress In Blue
La Femme 27989 Sale priceCHF 380 Regular priceCHF 498
Jessica Angel 2467 Neon YellowJessica Angel 2467 Neon Yellow
Jessica Angel 2467 Sale priceCHF 502
Mac Duggal 67852 BlueMac Duggal 67852 Blue
Mac Duggal 67852 Sale priceCHF 434
PS25160-Emerald RedPS25160-Emerald Red Bk
Portia and Scarlett PS25160 Sale priceCHF 377
La Femme - 28103 Off-Shoulder Ruched Fitted Bodice Satin Evening Dress In Champagne & GoldLa Femme - 28103 Off-Shoulder Ruched Fitted Bodice Satin Evening Dress In Champagne & Gold
La Femme 28103 Sale priceCHF 337 Regular priceCHF 399
Andrea and Leo A1278 Lapis Bluevideowise-widget-6675879ca76a3d00290aacea-10133594800321
Andrea and Leo A1278 Sale priceCHF 434
Ladivine OC008 Dusty RoseLadivine OC008 Dusty Rose
Ladivine OC008 Sale priceCHF 161 Regular priceCHF 236
Mac Duggal - 20294 Enchanting A-Line Floral Long Dress In Blue and GrayMac Duggal - 20294 Enchanting A-Line Floral Long Dress In Blue and Gray
Mac Duggal 20294 Sale priceCHF 352 Regular priceCHF 670
Andrea and Leo A1229 MauveAndrea and Leo A1229 Emerald
Andrea and Leo A1229 Sale priceCHF 211 Regular priceCHF 406
Elizabeth K GL3140 GreenElizabeth K GL3140 Green
Elizabeth K GL3140 Sale priceCHF 197 Regular priceCHF 393
Portia and Scarlett PS25609E
Portia and Scarlett PS25609E Sale priceCHF 823
Elizabeth K GL1912 Rose GoldElizabeth K GL1912 Rose Gold
Elizabeth K GL1912 Sale priceCHF 690 Regular priceCHF 1,378
Ieena Duggal 56037 RubyIeena Duggal 56037 Ruby
Ieena Duggal 56037 Sale priceCHF 316
GLS by Gloria GL3398 LilacGLS by Gloria GL3398 Lilac
GLS by Gloria GL3398 Sale priceCHF 257 Regular priceCHF 514
Dancing Queen 4323Dancing Queen 4323
Dancing Queen 4323 Sale priceCHF 176
Ladivine KV1116 BurgundyLadivine KV1116 Greenery
Ladivine KV1116 Sale priceCHF 167
Elizabeth K GL3113 BlackElizabeth K GL3113 Black
Elizabeth K GL3113 Sale priceCHF 216 Regular priceCHF 430
Portia and Scarlett PS25232 SilverPortia and Scarlett PS25232 Silver
Portia and Scarlett PS25232 Sale priceCHF 511
Clarisse 811110 LilacClarisse 811110 Lilac
Clarisse 811110 Sale priceCHF 458
Faviana 11418Faviana 11418
Faviana 11418 Sale priceCHF 403
Primavera 4519Primavera 4519
Primavera 4519 Sale priceCHF 462
Faviana S10806 BlackFaviana S10806 Black
Faviana S10806 Sale priceCHF 435
Portia and Scarlett PS25990CPortia and Scarlett PS25990C
Portia and Scarlett PS25990C Sale priceCHF 802
Andrea and Leo A1273 English VioletAndrea and Leo A1273 English Violet
Andrea and Leo A1273 Sale priceCHF 694
Ladivine KV1141Ladivine KV1141
Ladivine KV1141 Sale priceCHF 395
Mac Duggal 68515Mac Duggal 68515
Mac Duggal 68515 Sale priceCHF 402
La Femme 32975 BlackLa Femme 32975 Black
La Femme 32975 Sale priceCHF 306
Terani Couture 252GL5226Terani Couture 252GL5226
Terani Couture 252GL5226 Sale priceCHF 1,230
Andrea and Leo A1336 CreamAndrea and Leo A1336 Cream
Andrea and Leo A1336 Sale priceCHF 296
Ladivine CD681Ladivine CD681
Ladivine CD681 Sale priceCHF 381
Ladivine CDS465 BlueLadivine CDS465 Blue
Ladivine CDS465 Sale priceCHF 196
La Femme - 30721 Beaded Corset Tulle A-Line Dress In PinkLa Femme - 30721 Beaded Corset Tulle A-Line Dress In Pink
La Femme 30721 Sale priceCHF 87 Regular priceCHF 326
Jovani 24296Jovani 24296 Back
Jovani 24296 Sale priceCHF 655 Regular priceCHF 677
Dancing Queen 1672Dancing Queen 1672
Dancing Queen 1672 Sale priceCHF 492
Ellie Wilde EW37056Ellie Wilde EW37056
Ellie Wilde EW37056 Sale priceCHF 417
Portia and Scarlett PS26006Portia and Scarlett PS26006
Portia and Scarlett PS26006 Sale priceCHF 474
Portia and Scarlett PS25317 PinkPortia and Scarlett PS25317 Pink
Portia and Scarlett PS25317 Sale priceCHF 677
Elizabeth K GL2513Elizabeth K GL2513
Elizabeth K GL2513 Sale priceCHF 476 Regular priceCHF 951
Ladivine CD692Ladivine CD692
Ladivine CD692 Sale priceCHF 265
Portia and Scarlett PS26403CPortia and Scarlett PS26403C
Portia and Scarlett PS26403C Sale priceCHF 758

2025 Long Formal Party Dresses & Formal Prom Gowns
Check out our 2025 formal evening dress collection for your next prom, military ball, black tie wedding, or any other special occasion. Formal dresses are generally long and have elegant detailing such as sequin beading, embroidery, or flowy metallic. For an elegant and chic look, try a simple long, off shoulder dress with a flowy chiffon skirt. If you are looking for something sleek and sexy, try a fitted evening dress with a high slit and open back or a mermaid skirt with a plunging v neckline. If you need a sensational gown or a winter formal dress for your special occasion then browse through our collection and find your favorite dress from one of our designers like La Femme, Mac Duggal, JOVANI, Mayqueen, LaDivine and so many more! We also carry long sleeve elegant formal dresses for your next black tie event, gala, or social event. From a-line evening gowns, fit n flare, long sleeve and strapless ones, to mermaid and formal long dresses, and the classic black evening gowns, its all at MarlasFashions.com. Captivate the room in a stunning formal dress with a sweetheart neckline or off shoulder neckline in a chiffon or sexy bodycon, embroidered with sequins and jewels.

Tips on How to Find the Perfect Long Formal Dress
Here are a some tips on how to select a beautiful long formal for your next event.

Consider the Season & Venue - In the spring (outdoor settings and during daytime events): long party dresses in pastels and other bright hues look best. For evening events, celebrations in the winter, and parties at formal venues, bold colors or rich jewel tones are go-to shades for long formal dresses.

Get Inspired – Start getting ideas from Instagram and Pinterest or even check out what your favorite celebrities are wearing to their formal events this season. See flattering styles that match your personality? Then shop for formal evening dresses in similar designs to find the right one for you

Decide on Fabric and Color - Choose a formal dress in your favorite color or fabric or consider your skin tone. Then you can shop for formal evening gowns in your chosen shade or look for styles in your favorite textures. Go for a chiffon material if you like movement and a romantic look. Perhaps you like the way a long formal dress in jersey fabric hugs your curves. If you like a sparkly dress, go for a sequin dress.

Can Never go Wrong with a Black Formal Dress
Keep it Classic - When in doubt, a classic black formal dress is always in style.

Follow these tips and feel confident in your formal dress!