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Long Formal Party Dresses & Formal Gowns

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Ladivine CM365C black spaghetti strap sheath jersey gown with cutouts — front view plus size evening lookLadivine CM365C black jersey sheath gown — back view of the open back and slim straps
Faviana 9582 RaspberryFaviana 9582 Raspberry
Faviana 9582 Sale price$667 CAD
Ladivine CD763 silver plunging beaded sheath gown with removable tulle overskirt — main front viewLadivine CD763 silver beaded gown — angled view featuring the plunging neckline and overskirt drape
Faviana 11249 BlackFaviana 11249 Black
Faviana 11249 Sale price$556 CAD
Ladivine CDS532 off-shoulder satin sheath gown with floral embroidery and slit — main front view evening lookLadivine CDS532 floral embroidered satin gown — angled view showcasing the off-shoulder sleeves and high slit
Ladivine CDS537C strapless off-shoulder satin sheath gown with lace applique — main front view plus size formal lookLadivine CDS537C lace applique satin gown — angled view showcasing the off-shoulder sleeves and slit
Atria 6833HAtria 6833H
Atria 6833H Sale price$656 CAD
Ladivine CM369 red strapless sheer corset beaded lace taffeta sheath gown — main front view evening lookLadivine CM369 beaded lace taffeta gown — editorial pose showcasing the strapless corset and fitted silhouette
Ladivine CC0389 Black NudeLadivine CC0389 Black Nude
Ladivine CC0389 Sale price$430 CAD Regular price$935 CAD
Ladivine CC341C Smoky BlueLadivine CC341C Smoky Blue
LaDivine KV1115 off-shoulder glitter satin corset sheath evening gown — front view of the ruched bodiceLaDivine KV1115 — angled view of the off-shoulder corset bodice and ruched satin skirt
Ladivine CD3929 BlackLadivine CD3929 Black
La Femme 32799 Orchid PinkLa Femme 32799
La Femme 32799 Sale price$528 CAD
Ladivine CB156 RoyalLadivine CB156 Royal
Ladivine CB156 Sale price$213 CAD Regular price$374 CAD
Ladivine CC415 LavenderLadivine CC415 Blush
Ladivine CM365 black strapless mermaid jersey gown with rhinestone bust — main front view evening lookLadivine CM365 black rhinestone mermaid gown — angled view showcasing the fitted jersey silhouette
Ladivine CC2397 Smoky Blue fitted mermaid satin gown with sweetheart corset bodice, prom gownLadivine CC2397
Ladivine CC2397 Sale price$180 CAD Regular price$368 CAD
Ladivine CD2408 Azalea PinkLadivine CD2408 Emerald
Ladivine CM378 Light YellowLadivine CM378 Emerald
Ladivine CM378 Plunging V-Neck Sheer Corset Satin Sheath Gown Sale price$305 CAD Regular price$763 CAD
Faviana 11207 LipstickFaviana 11207 Red
Faviana 11207 Sale price$639 CAD
Ladivine CD796C Royal Blue halter-neck satin mermaid gown with high slit, prom gownLadivine CD796C Royal Blue halter satin gown with ruched bodice and open back, wedding guest gown
Ladivine CD796C Sale price$197 CAD
Clarisse 811223Clarisse 811223
Clarisse 811223 Sale price$1,217 CAD
Faviana 9578 NavyFaviana 9578 Navy
Faviana 9578 Sale price$667 CAD
Ladivine CM370 fuchsia spaghetti strap sweetheart beaded sequin illusion sheath gown — front view prom lookLadivine CM370 fuchsia sequin illusion gown — back view of the crisscross straps and fitted silhouette
Ladivine CC0238 GoldLadivine CC0238 Gold
Ladivine CC0238 Sale price$213 CAD Regular price$362 CAD
Faviana 11229 Light BlueFaviana 11229 Light Blue
Faviana 11229 Sale price$723 CAD
Ladivine CM367 black strapless sweetheart sheath gown with lace and horsehair hem — main front view evening lookLadivine CM367 black lace sheath gown — back view of the corset bodice and horsehair hem detail
Atria 6830HAtria 6830H
Atria 6830H Sale price$656 CAD
Faviana 11243 LipstickFaviana 11243 Lipstick
Faviana 11243 Sale price$695 CAD
Ladivine CC467 EmeraldLadivine CC467 Emerald
Ladivine CD776 red V-neck crystal lace mermaid gown with open V-back — vibrant front view evening lookLadivine CD776 red crystal lace mermaid gown — rear view of the open V-back and floor-length train
La Femme 32981 Royal BlueLa Femme 32981 Royal Blue
La Femme 32981 Sale price$600 CAD
Ladivine CD796 Dark Sage halter-neck satin mermaid gown with high slit, prom gownLadivine CD796 Dark Sage halter satin gown with ruched bodice, back view wedding guest gown
Ladivine CD796 Sale price$190 CAD
Ladivine CC4021 Dusty BlueLadivine CC4021 Black
Ladivine CD766 silver nude spaghetti strap rhinestone sweetheart sheer corset mermaid gown — front viewLadivine CD766 silver nude rhinestone gown — back view of the sheer corset and fitted mermaid silhouette
Ladivine CD773 emerald strapless sheer corset satin gown with side sash — rich green front view prom lookLadivine CD773 emerald satin corset gown — angled view highlighting the side sash and high slit
Ladivine CM372 royal blue spaghetti strap sweetheart lace taffeta sheath gown — front view prom lookLadivine CM372 royal blue lace taffeta gown — back view of the crisscross open back and corset detail
Ladivine CDS529C scoop crystal satin sheath gown with detachable straps — main front view plus size prom lookLadivine CDS529C crystal satin sheath gown — angled view showcasing the scoop neckline and fitted silhouette
Ladivine CC477 Silver NudeLadivine CC477 Smoky Blue
La Femme 32773 Royal BlueLa Femme 32773 Royal Blue
La Femme 32773 Sale price$556 CAD
Ladivine CD379 RoyalLadivine CD379 Fuchsia
Ladivine CC427 EmeraldLadivine CC427 Emerald
Ladivine CD754 silver metallic satin plunging V-neck beaded sheath gown — sleek front view evening look
Ladivine KV1126 MauveLadivine KV1126 Navy
LaDivine KV1119 navy blue v-neck ruched stretch satin sheath gown — front view with side sashLaDivine KV1119 navy blue — angled view of the ruched satin bodice and draped side sash
LaDivine KV1117 black sequin lace stretch satin sheath prom gown — front view with illusion insetLaDivine KV1117 black — close-up of the sequin lace detailing and sheer illusion panel
Ladivine CM382 Rose GoldLadivine CM382 Rose Gold
Ladivine CD756 rose champagne beaded corset gown — angled side view highlighting the fitted bodice and tulle skirtLadivine CD756 rose champagne — close-up detail of the crystal beading across the strapless corset bodice

2026 Long Formal Party Dresses & Formal Prom Gowns
Check out our 2026 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!