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Long Formal Party Dresses & Formal Prom Gowns

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Portia and Scarlett PS25336 PinkPortia and Scarlett PS25336 Black
Portia and Scarlett PS25336 Sale priceCHF 504
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 342 Regular priceCHF 405
May Queen MQ2134 BlackMay Queen MQ2134 Black
May Queen MQ2134 Sale priceCHF 225
Clarisse 810427 PinkClarisse 810427 Pink
Clarisse 810427 Sale priceCHF 326
SCALA 60222 ASCALA 60222 A
SCALA 60222 A Sale priceCHF 400
SCALA 47551 ASCALA 47551 A
SCALA 47551 A Sale priceCHF 266
GLS by Gloria GL3369 NavyGLS by Gloria GL3369 Navy
GLS by Gloria GL3369 Sale priceCHF 200 Regular priceCHF 399
Faviana 11028 Black/SunburstFaviana 11028 Black/Sunburst
Faviana 11028 Sale priceCHF 408
La Femme 32876 ChampagneLa Femme 32876 Mocha
La Femme 32876 Sale priceCHF 261
La Femme 30697 In PurpleLa Femme 30697
La Femme 30697 Sale priceCHF 89 Regular priceCHF 248
La Femme - 28026 Cap Sleeve Jersey Long Formal Dress In BlackLa Femme - 28026 Cap Sleeve Jersey Long Formal Dress In Black
La Femme 28026 Sale priceCHF 261 Regular priceCHF 322
Mac Duggal 5497 RoseMac Duggal 5497 Rose
Mac Duggal 5497 Sale priceCHF 654
Portia and Scarlett PS25213 BlackPortia and Scarlett PS25213 Black
Portia and Scarlett PS25213 Sale priceCHF 420
GLS by Gloria GL3220 FuchsiaGLS by Gloria GL3220 Fuchsia
GLS by Gloria GL3220 Sale priceCHF 220 Regular priceCHF 440
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
Atria 7039HAtria 7039H
Atria 7039H Sale priceCHF 404
Mac Duggal 20405 In PurpleMac Duggal 20405 In Purple
Mac Duggal 20405 Sale Sale priceCHF 357 Regular priceCHF 680
Jovani 24328 BlackJovani 24328 Black
Jovani 24328 Sale priceCHF 797 Regular priceCHF 812
Jovani 24056 Gray MultiJovani 24056 Gray Multi Back
Jovani 24056 Sale priceCHF 974
May Queen RQ7962 BlackMay Queen RQ7962 Black
May Queen RQ7962 Sale priceCHF 222 Regular priceCHF 280
Mac Duggal 20581 Nude MultiMac Duggal 20581 Nude Multi
Mac Duggal 20581 Sale priceCHF 736
SCALA 61323 SkySCALA 61323 Sky
SCALA 61323 Sale priceCHF 417
Ladivine C159WLadivine C159W
Ladivine C159W Sale priceCHF 348
Atria 6807HAtria 6807H
Atria 6807H Sale priceCHF 379
Elizabeth K GL3145 Hot PinkElizabeth K GL3145 Hot Pink
Elizabeth K GL3145 Sale priceCHF 200 Regular priceCHF 399
Faviana S10818 in BlueFaviana S10818 in Blue
Faviana S10818 Sale priceCHF 327
Ladivine J882 BlackLadivine J882 Black
Ladivine J882 Sale priceCHF 195 Regular priceCHF 454
Portia and Scarlett PS25264 WhitePortia and Scarlett PS25264 White
Portia and Scarlett PS25264 Sale priceCHF 610
Elizabeth K GL3559 SilverElizabeth K GL3559 Silver
Elizabeth K GL3559 Sale priceCHF 215
Ladivine CD0177 MauveLadivine CD0177 Mauve
Ladivine CD0177 Sale priceCHF 79 Regular priceCHF 154
La Femme - 27856 Full Length Lace Fitted Dress In SilverLa Femme - 27856 Full Length Lace Fitted Dress In Pink
La Femme 27856 Sale priceCHF 491 Regular priceCHF 554
Clarisse 811003 Royal MultiClarisse 811003 Royal Multi
Clarisse 811003 Sale priceCHF 420
Alyce Paris 61499 RoyalAlyce Paris 61499 Royal
Alyce Paris 61499 Sale priceCHF 263
SCALA 601 CalypsoSCALA 601 Calypso
SCALA 60141 Sale priceCHF 327
Mac Duggal 5642Mac Duggal 5642
Mac Duggal 5642 Sale priceCHF 357 Regular priceCHF 680
Mac Duggal 5717 Brown MultiMac Duggal 5717 Brown Multi
Mac Duggal 5717 Sale priceCHF 654
Faviana S10813 PinkFaviana S10813 Pink
Faviana S10813 Sale priceCHF 408
Mac Duggal Cocktail - 30750D Pleated Glitter A-Line Dress In BlackMac Duggal Cocktail - 30750D Pleated Glitter A-Line Dress In Black
Mac Duggal 30750 Sale Sale priceCHF 212 Regular priceCHF 424
Ladivine CC3700 RosegoldLadivine CC3700 Rosegold
Ladivine CC3700 Sale priceCHF 282
May Queen RQ7956 BlackMay Queen RQ7956 Black
May Queen RQ7956 Sale priceCHF 91 Regular priceCHF 118
Atria 7034HAtria 7034H
Atria 7034H Sale priceCHF 396
Jovani 08536 in PurpleJovani 08536 in Purple
Jovani 08536 Sale priceCHF 620
La Femme 32873La Femme 32873
La Femme 32873 Sale priceCHF 294
La Femme - 28037 Short Sleeve Embroidered Lace Tulle Dress In BrownLa Femme - 28037 Short Sleeve Embroidered Lace Tulle Dress In Brown
La Femme 28037 Sale priceCHF 408 Regular priceCHF 471
Sold outMac Duggal 5685Mac Duggal 5685
Mac Duggal 5685 Sale priceCHF 407
GLS by Gloria GL3330 BurgundyGLS by Gloria GL3330 Burgundy
GLS by Gloria GL3330 Sale priceCHF 180 Regular priceCHF 360

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!