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Long Formal Party Dresses & Formal Prom Gowns

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La Femme - 29732 Bead-Adorned Lace Gown In GreenLa Femme - 29732 Bead-Adorned Lace Gown In Green
La Femme 29732 Sale priceCHF 228
Mac Duggal - 49532 Ruched Greek Style High Low Dress In WhiteMac Duggal - 49532 Ruched Greek Style High Low Dress In White
Mac Duggal 49532 Sale priceCHF 216 Regular priceCHF 417
Ladivine CC416 GreeneryLadivine CC416 Greenery
MF4196 - MF Sale priceCHF 294
Jessica Angel 2320 RedJessica Angel 2320 Red
Jessica Angel 2320 Sale priceCHF 453
Terani Couture 2011P1032 RedTerani Couture 2011P1032 Red
Terani Couture 2011P1032 Sale priceCHF 339
May Queen MQ1919 ChampagneMay Queen MQ1919 Champagne
May Queen MQ1919 Sale priceCHF 156 Regular priceCHF 215
Jessica Angel 2497 Black/BlueJessica Angel 2497 Black/Blue
Jessica Angel 2497 Sale priceCHF 453
Mac Duggal - 41029D Long Sleeve Sequined Short Dress In GreenMac Duggal 41029
Mac Duggal 41029 Sale priceCHF 176 Regular priceCHF 321
Portia and Scarlett PS25169 CobaltPortia and Scarlett PS25169
Jessica Angel 981 Silver/BlueJessica Angel 981 Silver/Blue
Jessica Angel 981 Sale priceCHF 546
Jessica Angel 789 RedJessica Angel 789 Red
Jessica Angel 789 Sale priceCHF 453
May Queen MQ1946 NeutralMay Queen MQ1946 Pink
May Queen MQ1946 - MF Sale priceCHF 118 Regular priceCHF 152
Jessica Angel 841 Rust RoseJessica Angel 841 Rust Rose
Jessica Angel 841 Sale priceCHF 453
Alyce Paris 61793 EmeraldAlyce Paris 61793 Emerald
Alyce Paris 61793 - MF Sale priceCHF 315
La Femme 32074 Light BlueLa Femme 32074 Light Blue
La Femme 32074 - MF Sale priceCHF 491
Jessica Angel 932 Metal PinkJessica Angel 932 Metal Pink
Jessica Angel 932 Sale priceCHF 361
Jessica Angel 2321 BlackJessica Angel 2321 Black
Jessica Angel 2321 Sale priceCHF 453
Elizabeth K GL3056 In PinkElizabeth K GL3056 In Pink
Elizabeth K GL3056 Sale priceCHF 239 Regular priceCHF 477
Mayqueen MQ 1740 long metallic gold halter evening fitted mermaid dress w/low back.Full length satin gown is perfect for enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpgMayqueen MQ 1740 long navy blue halter evening fitted mermaid dress w/low back.Full length dark blue satin gown is perfect for enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpg
May Queen MQ1740 - MF Sale priceCHF 59 Regular priceCHF 86
Jessica Angel 945 LinchenJessica Angel 945 Linchen
Jessica Angel 945 Sale priceCHF 453
La Femme - 30564 Embroidered V-Neck Mermaid Gown In BlackLa Femme - 30564 Embroidered V-Neck Mermaid Gown In Black
La Femme 30564 Sale priceCHF 310
Jessica Angel 627 Beet RedJessica Angel 627 Beet Red
Jessica Angel 627 Sale priceCHF 416
Jessica Angel 994 IvoryJessica Angel 994 Ivory
Jessica Angel 994 Sale priceCHF 389
Ladivine CD295 MarigoldLadivine CD295 Marigold
MFCD2995-MF Sale priceCHF 264
Jessica Angel 2383 LavenderJessica Angel 2383 Lavender
Jessica Angel 2383 Sale priceCHF 435
Ladivine CD848 PlatinumLadivine CD848 Platinum
MFCD8498 - MF Sale priceCHF 440
Mayqueen RQ7795 long rose gold sequin dress with long sleeves and low open back.jpgMayqueen RQ7795 long rose gold sequin dress with long sleeves and low open back-back.jpg
May Queen RQ7795 Sale priceCHF 91 Regular priceCHF 114
Jessica Angel 761 RedJessica Angel 761 White
Jessica Angel 761 Sale priceCHF 361
Jessica Angel 918 Baby BlueJessica Angel 918 Baby Blue
Jessica Angel 918 Sale priceCHF 416
May Queen RQ8155 Baby BlueMay Queen RQ8155 Baby Blue
MF81595 - MF Sale priceCHF 382
Jessica Angel 860 Neon PinkJessica Angel 860 Neon Pink
Jessica Angel 860 Sale priceCHF 361
MFT7095 - MF Sale priceCHF 129
Clarisse 62274-MFClarisse 62274-MF
Clarisse 62274-MF Sale priceCHF 390
Jessica Angel 370 Dark Fuchsia/BlackJessica Angel 370 Dark Fuchsia/Black
Jessica Angel 370 Sale priceCHF 361
Mayqueen RQ7823 long mauve v neck evening fitted lace dress w/straps. Full length light pink gown is perfect for  enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpgMayqueen RQ7823-long ivory sexy wedding dress w/v neck & open back. Formal lace mermaid dress is perfect wedding bridal dress, simple prom dress, court/civil wedding, second wedding, destination wedding dress, cheap wedding dress. Plus sizes avail-b.jpg
May Queen RQ7823 Sale priceCHF 154 Regular priceCHF 292
Jessica Angel 930 AquaJessica Angel 930 Aqua
Jessica Angel 930 Sale priceCHF 398
Jessica Angel 210 Royal
Jessica Angel 210 Sale priceCHF 416
Mayqueen RQ7811 long dusty blue v neck sexy fitted lace mermaid dress w/open back. Full length light blue gown is perfect for  enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail.jpgMayqueen RQ7811 long dusty blue v neck sexy fitted lace mermaid dress w/open back. Full length light blue gown is perfect for  enagagement/e-shoot dress, formal wedding guest, indowestern gown, evening party dress, prom, bridesmaid. Plus sizes avail-b.jpg
May Queen RQ7811 Sale priceCHF 114 Regular priceCHF 234
Jessica Angel 640 NavyJessica Angel 640 Navy
Jessica Angel 640 Sale priceCHF 361
Jessica Angel SP326 Dark Fuchsia/BlackJessica Angel SP326 Dark Fuchsia/Black
Jessica Angel SP326 Sale priceCHF 389
Sold outLadivine CD0232 GreeneryLadivine CD0232 Mocha Gold
MFCD02392 -MF Sale priceCHF 276
Jessica Angel 850 Dark GreenJessica Angel 850 Dark Green
Jessica Angel 850 Sale priceCHF 453
SCALA 60262 Banana SilverSCALA 60262 Banana Silver
SCALA 60262 Sale priceCHF 299
Jessica Angel 2302 HunterJessica Angel 2302 Hunter
Jessica Angel 2302 Sale priceCHF 398
PS25166-AquaPS25166-Teal Pink Black
Andrea and Leo - A0725 Plunged Off-Shoulder Metallic Mermaid Gown In BlueAndrea and Leo - A0725 Plunged Off-Shoulder Metallic Mermaid Gown In Blue
Andrea and Leo A0725 - MF Sale priceCHF 221 Regular priceCHF 280

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!