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Long Formal Party Dresses & Formal Prom Gowns

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GLS by Gloria GL3254 Dark SageGLS by Gloria GL3254 Dark Sage
GLS by Gloria GL3254 Sale priceCHF 220 Regular priceCHF 440
Jessica Angel 984 BlackJessica Angel 984 Black
Jessica Angel 984 Sale priceCHF 509
May Queen RQ7948 GreenMay Queen RQ7948 Green
May Queen RQ7948 Sale priceCHF 156
May Queen MQ1902 Rose GoldMay Queen MQ1902 Rose Gold
May Queen MQ1902 Sale priceCHF 179 Regular priceCHF 237
Portia and Scarlett PS25211 BlackPortia and Scarlett PS25211 Black
Portia and Scarlett PS25211 Sale priceCHF 671
GLS by Gloria GL3377 SageGLS by Gloria GL3377 Sage
GLS by Gloria GL3377 Sale priceCHF 222 Regular priceCHF 442
GLS by Gloria GL3273 SilverGLS by Gloria GL3273 Silver
GLS by Gloria GL3273 Sale priceCHF 301 Regular priceCHF 602
Sold outMac Duggal 5976 ApricotMac Duggal 5976 Apricot
Mac Duggal 5976 Sale priceCHF 653
Ieena Duggal 27085Ieena Duggal 27085
Ieena Duggal 27085 Sale priceCHF 339
Ladivine T704Ladivine T704
Ladivine T704 Sale priceCHF 104
May Queen RQ8187 Kiwi May Queen RQ8187 Kiwi
May Queen RQ8187 Sale priceCHF 471
Portia and Scarlett PS26208Portia and Scarlett PS26208
Portia and Scarlett PS26208 Sale priceCHF 692
Ladivine CM323 Navy GoldLadivine CM323 Navy Gold
Ladivine CM323 Sale priceCHF 99 Regular priceCHF 227
Ieena Duggal 30776 BlackIeena Duggal 30776 Black
Ieena Duggal 30776 Sale priceCHF 408
La Femme 32526 Hot PinkLa Femme 32526 Hot Pink
La Femme 32526 Sale priceCHF 244
Jessica Angel 2551 RedJessica Angel 2551 Red
Jessica Angel 2551 Sale priceCHF 453
Andrea and Leo A0997WAndrea and Leo A0997W
Andrea and Leo A0997W Sale priceCHF 477
Jessica Angel 2514 Dark BlueJessica Angel 2514 Dark Blue
Jessica Angel 2514 Sale priceCHF 361
Clarisse 811314 Dark JadeClarisse 811314 Dark Jade
Clarisse 811314 Sale priceCHF 410
SCALA 61327 Sky MultiSCALA 61327 Sky Multi
SCALA 61327 Sale priceCHF 500
Portia and Scarlett PS25248 BlackPortia and Scarlett PS25248 Black
Portia and Scarlett PS25248 Sale priceCHF 534
Portia and Scarlett PS25250 BluePortia and Scarlett PS25250
Portia and Scarlett PS25250 Sale priceCHF 610
Alyce Paris 61512 Neon PinkAlyce Paris 61512 Neon Pink
Alyce Paris 61512 Sale priceCHF 263
Alyce Paris 61457 BlueAlyce Paris 61457 Blue
Alyce Paris 61457 Sale priceCHF 167
La Femme - 29242 Satin V-Neck Homecoming Dress In Greengrade 8 grad dresses, graduation dressesLa Femme - 29242 Satin V-Neck Homecoming Dress In Greengrade 8 grad dresses, graduation dresses
La Femme 29242 Sale priceCHF 163
Andrea and Leo A1248 SageAndrea and Leo A1248 Sage
Andrea and Leo A1248 Sale priceCHF 284
Ladivine CD836 Deep Redvideowise-widget-6675879ca76a3d00290aacea-10083698835649
Ladivine CD836 Sale priceCHF 154
Mac Duggal 11779 BlackMac Duggal 11779 Black
Mac Duggal 11779 Sale priceCHF 735
May Queen MQ1920 PinkMay Queen MQ1920 Pink
May Queen MQ1920 Sale priceCHF 114 Regular priceCHF 156
Portia and Scarlett PS26115Portia and Scarlett PS26115
Portia and Scarlett PS26115 Sale priceCHF 592
May Queen RQ8164 ChampagneMay Queen RQ8164 Champagne
May Queen RQ8164 Sale priceCHF 435
La Femme 30639 BlackLa Femme 30639 Black
La Femme 30639 Sale priceCHF 369
Faviana 11033 GoldFaviana 11033 Gold
Faviana 11033 Sale priceCHF 392
Dancing Queen 4320Dancing Queen 4320
Dancing Queen 4320 Sale priceCHF 224
Ladivine CD994 BlueLadivine CD994 Silver
Ladivine CD994 Sale priceCHF 136 Regular priceCHF 282
Clarisse 811131 Steel BlueClarisse 811131 Steel Blue
Clarisse 811131 Sale priceCHF 391
May Queen RQ7983 BlueMay Queen RQ7983 Blue
May Queen RQ7983 Sale priceCHF 134 Regular priceCHF 224
Clarisse 810438 Forest GreenClarisse 810438 Forest Green
Clarisse 810438 Sale priceCHF 297
Alyce Paris 61601 Electric BlueAlyce Paris 61601 Electric Blue
Alyce Paris 61601 Sale priceCHF 324
May Queen MQ1922 GrayMay Queen MQ1922 Gray
May Queen MQ1922 Sale priceCHF 114 Regular priceCHF 163
Ieena Duggal 49902 RedIeena Duggal 49902 Red
Ieena Duggal 49902 Sale priceCHF 490
Elizabeth K GL3557 GoldElizabeth K GL3557 Gold
Elizabeth K GL3557 Sale priceCHF 256
Elizabeth K GL3133 Baby BlueElizabeth K GL3133 Baby Blue
Elizabeth K GL3133 Sale priceCHF 219 Regular priceCHF 436
Alyce Paris 61620 OceanAlyce Paris 61620 Ocean
Alyce Paris 61620 Sale priceCHF 263
SCALA 60391SCALA 60391
SCALA 60391 Sale priceCHF 484
Clarisse 810491 BlueClarisse 810491 Green Pink Blue
Clarisse 810491 Sale priceCHF 297
La Femme - 27033 Floral Ornate Satin Overlay Gown In BrownLa Femme - 27033 Floral Ornate Satin Overlay Gown In Brown
La Femme 27033 Sale priceCHF 474 Regular priceCHF 537
Portia and Scarlett PS26020Portia and Scarlett PS26020
Portia and Scarlett PS26020 Sale priceCHF 657

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!