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Long Formal Party Dresses & Formal Prom Gowns

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Portia and Scarlett PS26013Portia and Scarlett PS26013
Portia and Scarlett PS26013 Sale priceCHF 500
Portia and Scarlett PS26416CPortia and Scarlett PS26416C
Portia and Scarlett PS26416C Sale priceCHF 776
Portia and Scarlett PS25198 SeagreenPortia and Scarlett PS25198 Seagreen
Portia and Scarlett PS25198 Sale priceCHF 397
Clarisse 810708Clarisse 810708
Clarisse 810708 Sale priceCHF 318
Ladivine CD380 Light BlueLadivine CD380 Dusty Rose
Ladivine CD380 Sale priceCHF 154
Portia and Scarlett PS26004Portia and Scarlett PS26004
Portia and Scarlett PS26004 Sale priceCHF 500
Ladivine KV1116 BurgundyLadivine KV1116 Greenery
Ladivine KV1116 Sale priceCHF 175
Jessica Angel 2593 CeriseJessica Angel 2593 Cerise
Jessica Angel 2593 Sale priceCHF 399
Ladivine CD297 RedLadivine CD297 Red
Ladivine CD297 Sale priceCHF 219
Portia and Scarlett PS26002Portia and Scarlett PS26002
Portia and Scarlett PS26002 Sale priceCHF 646
Jovani 42541 RedJovani 42541 Red
Jovani 42541 Sale priceCHF 683
Portia and Scarlett PS26041Portia and Scarlett PS26041
Portia and Scarlett PS26041 Sale priceCHF 505
Ladivine 7481 BurgundyLadivine 7481 Black
Ladivine 7481 Sale priceCHF 132
Portia and Scarlett PS26022Portia and Scarlett PS26022
Portia and Scarlett PS26022 Sale priceCHF 529
Portia and Scarlett PS25311 IvoryPortia and Scarlett PS25311
Portia and Scarlett PS25311 Sale priceCHF 423
Portia and Scarlett PS26173Portia and Scarlett PS26173
Portia and Scarlett PS26173 Sale priceCHF 646
Faviana 11209 RedFaviana 11209 Red
Faviana 11209 Sale priceCHF 409
Portia and Scarlett PS26099Portia and Scarlett PS26099
Portia and Scarlett PS26099 Sale priceCHF 635
Portia and Scarlett PS26223Portia and Scarlett PS26223
Portia and Scarlett PS26223 Sale priceCHF 476
Portia and Scarlett PS26432CPortia and Scarlett PS26432C
Portia and Scarlett PS26432C Sale priceCHF 693
Ladivine C163 RoyalLadivine C163 Royal
Ladivine C163 Sale priceCHF 246
Portia and Scarlett PS26405CPortia and Scarlett PS26405C
Portia and Scarlett PS26405C Sale priceCHF 547
Ladivine CD295 Paris BlueLadivine CD295 Paris Blue
Ladivine CD295 Sale priceCHF 197 Regular priceCHF 293
Faviana 11255 Dark Hunter GreenFaviana 11255 Dark Hunter Green
Faviana 11255 Sale priceCHF 442
Jovani 43419 Hot PinkJovani 43419 Hot Pink
Jovani 43419 Sale priceCHF 506
Portia and Scarlett PS26215Portia and Scarlett PS26215
Portia and Scarlett PS26215 Sale priceCHF 799
Portia and Scarlett PS26141Portia and Scarlett PS26141
Portia and Scarlett PS26141 Sale priceCHF 635
Portia and Scarlett PS25308Portia and Scarlett PS25308
Portia and Scarlett PS25308 Sale priceCHF 604
Ladivine CD0234 Lt BlueLadivine CD0234 Smoky Blue
Ladivine CD0234 Sale priceCHF 198
Portia and Scarlett PS26450CPortia and Scarlett PS26450C
Portia and Scarlett PS26450C Sale priceCHF 699
Ladivine CD337CLadivine CD337C
Ladivine CD337C Sale priceCHF 133
Portia and Scarlett PS26005Portia and Scarlett PS26005
Portia and Scarlett PS26005 Sale priceCHF 517
Portia and Scarlett PS26176Portia and Scarlett PS26176
Portia and Scarlett PS26176 Sale priceCHF 547
Portia and Scarlett PS26175Portia and Scarlett PS26175
Portia and Scarlett PS26175 Sale priceCHF 494
Ladivine CC0240 Silver NudeLadivine CC0240 Silver Nude
Ladivine CC0240 Sale priceCHF 398
Ladivine CC398 Smoky BlueLadivine CC398 Smoky Blue
Ladivine CC398 Sale priceCHF 246
Woman in a light blue evening gown standing by a pool with trees in the background, FAVIANA brand visible.Woman in a light blue evening gown with a pool and garden in the background, wearing a Faviana dress.
Faviana 11401 Sale priceCHF 393
Ladivine CC324 Black-NudeLadivine CC324 Black-Nude
Ladivine CC324 Sale priceCHF 256
Ladivine CD868 Dusty BlueLadivine CD868 Dusty Blue
Ladivine CD868 Sale priceCHF 167
Ladivine CB158 Silver NudeLadivine CB158 Silver Nude
Ladivine CB158 Sale priceCHF 344
Ladivine CC475 Dusty RoseLadivine CC475 Dusty Blue
Ladivine CC475 Sale priceCHF 198
Ladivine CD759 Rose PinkLadivine CD759 Rose Pink
Ladivine CD759 Sale priceCHF 398
Ladivine CD383 RedLadivine CD383 Red
Ladivine CD383 Sale priceCHF 145
Portia and Scarlett PS24850CPortia and Scarlett PS24850C
Portia and Scarlett PS24850C Sale priceCHF 711
Portia and Scarlett PS26026Portia and Scarlett PS26026
Portia and Scarlett PS26026 Sale priceCHF 605
Portia and Scarlett PS26052Portia and Scarlett PS26052
Portia and Scarlett PS26052 Sale priceCHF 752
Ladivine CC416 GreeneryLadivine CC416 Greenery
Ladivine CC416 Sale priceCHF 256
Clarisse 811175Clarisse 811175
Clarisse 811175 Sale priceCHF 327

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!