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Long Formal Party Dresses & Formal Prom Gowns

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Ladivine CD275 BlackLadivine CD275 Black
Ladivine CD275 Sale priceCHF 138 Regular priceCHF 314
Ladivine CD962 MauveLadivine CD962 Mauve
Ladivine CD962 Sale priceCHF 246 Regular priceCHF 266
La Femme 30637 Pink and OrangeLa Femme 30637 Pink and Orange
La Femme 30637 Sale priceCHF 360
Mac Duggal 68094 In PinkMac Duggal 68094 In Pink
Mac Duggal 68094 Sale priceCHF 325
Elizabeth K GL1960Elizabeth K GL1960
Elizabeth K GL1960 Sale priceCHF 719 Regular priceCHF 1,437
Elizabeth K GL3541 LilacElizabeth K GL3541 Lilac
Elizabeth K GL3541 Sale priceCHF 705
Elizabeth K GL2514Elizabeth K GL2514
Elizabeth K GL2514 Sale priceCHF 472 Regular priceCHF 944
Jovani23577 BlueMulti_2Jovani23577BlueMulti Back
Jovani 23577 Sale priceCHF 700
Mac Duggal 11832 BlackMac Duggal 11832 Black
Mac Duggal 11832 Sale priceCHF 528 Regular priceCHF 1,229
Elizabeth K GL1957 Rose GoldElizabeth K GL1957 Rose Gold
Elizabeth K GL1957 Sale priceCHF 685 Regular priceCHF 1,370
May Queen RQ7913 In BlackMay Queen RQ7913 In Black
May Queen RQ7913 Sale priceCHF 95 Regular priceCHF 231
Elizabeth K GL3525 BlueElizabeth K GL3525 Blue
Elizabeth K GL3525 Sale priceCHF 940
La Femme 32725 Arctic BlueLa Femme 32725 Blush
La Femme 32725 Sale priceCHF 491
GLS by Gloria GL3118GLS by Gloria GL3118
GLS by Gloria GL3118 Sale priceCHF 301 Regular priceCHF 600
Mac Duggal 20402 In WhiteMac Duggal 20402 In White
Mac Duggal 20402 Sale priceCHF 357 Regular priceCHF 680
Mac Duggal 42098 MochaMac Duggal 42098 Navy
Mac Duggal 42098 Sale priceCHF 881 Regular priceCHF 2,196
Mac Duggal 9192 MidnightMac Duggal 9192 Mulberry
Mac Duggal 9192 Sale priceCHF 705 Regular priceCHF 1,235
Andrea and Leo A1235 Dusty BlueAndrea and Leo A1235 Dusty Blue
Andrea and Leo A1235 Sale priceCHF 596
Mac Duggal 79365 In PinkMac Duggal 79365 In Pink
Mac Duggal 79365 Sale priceCHF 572
May Queen LK191 LilacMay Queen LK191 Lilac
May Queen LK191 Sale priceCHF 265 Regular priceCHF 529
Elizabeth K GL2510Elizabeth K GL2510
Elizabeth K GL2510 Sale priceCHF 355
Alyce Paris 61913 MultiAlyce Paris 61913 Multi
Alyce Paris 61913 Sale priceCHF 493
La Femme - 28470 Floral Lace Tulle Slit A-Line Gown In MauveLa Femme - 28470 Floral Lace Tulle Slit A-Line Gown In Pink
La Femme 28470 Sale priceCHF 409
Elizabeth K GL3521 Royal BlueElizabeth K GL3521 Royal Blue
Elizabeth K GL3521 Sale priceCHF 820
La Femme 33028 Light BlueLa Femme 33028 Light Blue
La Femme 33028 Sale priceCHF 386
May Queen LK267 Black GoldMay Queen LK267 Black Gold
May Queen LK267 Sale priceCHF 735
Portia and Scarlett PS25336 PinkPortia and Scarlett PS25336 Black
Portia and Scarlett PS25336 Sale priceCHF 504
Faviana 11028 Black/SunburstFaviana 11028 Black/Sunburst
Faviana 11028 Sale priceCHF 409
La Femme 30697 In PurpleLa Femme 30697
La Femme 30697 Sale priceCHF 89 Regular priceCHF 248
La Femme 32690 BlackLa Femme 32690 Black
La Femme 32690 Sale priceCHF 392
Ladivine CD0182 In PinkLadivine CD0182 In Blue
Ladivine CD0182 Sale priceCHF 118 Regular priceCHF 270
Andrea and Leo A1237 LavenderAndrea and Leo A1237 Paris Blue
Andrea and Leo A1237 Sale priceCHF 195 Regular priceCHF 393
Mac Duggal 20405 In PurpleMac Duggal 20405 In Purple
Mac Duggal 20405 Sale Sale priceCHF 357 Regular priceCHF 680
Ladivine C159WLadivine C159W
Ladivine C159W Sale priceCHF 348
Ladivine CD0177 MauveLadivine CD0177 Mauve
Ladivine CD0177 Sale priceCHF 79 Regular priceCHF 154
Clarisse 811003 Royal MultiClarisse 811003 Royal Multi
Clarisse 811003 Sale priceCHF 420
Jovani 08536 in PurpleJovani 08536 in Purple
Jovani 08536 Sale priceCHF 620
Elizabeth K GL2515Elizabeth K GL2515
Elizabeth K GL2515 Sale priceCHF 610 Regular priceCHF 1,219
Andrea and Leo A1286 LavenderAndrea and Leo A1286 Lavender
Andrea and Leo A1286 Sale priceCHF 195 Regular priceCHF 436
Ladivine J840 Rose GoldLadivine J840 Navy
Ladivine J840 Sale priceCHF 73 Regular priceCHF 145
La Femme - 29964 Plunging Neck Lace Tulle Long Dress In PinkLa Femme - 29964 Plunging Neck Lace Tulle Long Dress In Pink
La Femme 29964 Sale priceCHF 327
Elizabeth K GL1930 BurgundyElizabeth K GL1930 Burgundy
Elizabeth K GL1930 Sale priceCHF 568 Regular priceCHF 1,135
Mac Duggal 79430 Slate BlueMac Duggal 79430 Slate Blue
Mac Duggal 79430 Sale priceCHF 655
Sold outAndrea and Leo A1251 NavyAndrea and Leo A1251 Navy
Andrea and Leo A1251 Sale priceCHF 264
Ladivine CD252C Champagne GoldLadivine CD252C Red
Ladivine CD252C Sale priceCHF 199
La Femme 32700 Dark BerryLa Femme 32700 Dark Berry
La Femme 32700 Sale priceCHF 358
GLS by Gloria GL3256 ChampagneGLS by Gloria GL3256 Champagne
GLS by Gloria GL3256 Sale priceCHF 261 Regular priceCHF 522
GLS by Gloria GL3252 Smoky Blue/PeachGLS by Gloria GL3252 Smoky Blue/Peach
GLS by Gloria GL3252 Sale priceCHF 261 Regular priceCHF 522

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!