Long Dresses
Long dresses are the easiest way to look styled without overthinking it. From casual to cocktail, choose knit satin, silky satin, mesh, slinky jersey knit, and ribbed knit in silhouettes with long sleeves, short sleeves, mock neck, wide-neck, off the shoulder, plunging v-necklines, and drapey cowl necks. Cut outs with luxe gold hardware keep things modern, while fall hues like chocolate brown, burgundy, deep plums, and classic black bring the mood. Perfect for wedding guest events, date nights, and birthday dinner parties.
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Long Dresses for Effortless Fall & Winter Style
Long dresses make getting dressed feel instantly pulled together, whether your day calls for a relaxed floral maxi or your night deserves a floor-sweeping gown. This fall and winter, discover flowing fabrics alongside sculptural floor-length dresses, with casual long dresses for getaways and elevated styles that make special plans feel effortless.
Are All Long Dresses Formal?
Not at all. Fabric, silhouette, and styling can completely change the mood. A relaxed floral maxi can feel easy for Thanksgiving dinner or a weekend away, while satin, sheer details, or a fitted column silhouette can turn the length into evening wear. Formal long dresses and long gowns bring extra polish for holiday office parties and dressier events—the length gives you options rather than defining the dress code.
Which Long Dress Silhouette Should I Choose?
Think about the movement and shape you want. Flowing maxis create an easy, graceful effect, while column styles keep the line sleek and streamlined. Mermaid Dresses bring more structure before flaring toward the hem, and dresses with high slit details add movement to fitted silhouettes. For an engagement photoshoot, those details can give a long dress extra dimension as you move in front of the camera.
Can I Wear a Long Dress to a Wedding?
Absolutely—just let the venue and dress code guide the look. A relaxed print can feel right for a rustic celebration; explore Country Wedding Guest Dresses when that’s the vibe. More polished weddings may call for elevated fabrics, sculptural silhouettes, or details like sheer panels, draped sleeves, ruffles, and statement bows.
Find Your Floor-Length Favorite with Us
Some dresses just need to be tried on IRL. Visit one of Windsor’s 350+ stores across North America to see how the length, fit, and fabric move on you, shop online, or get Windsor's Clothing App for convenient shopping, virtual try-ons, and exclusive perks.
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Chic Texture Flocked Floral Mesh Maxi Dress
The detail is in the texture. This floral flocked mesh maxi dress hugs close with a plunging halter neckline, an open back, and lower ruching that keeps the bodycon silhouette looking extra sculpted.
Fit & Features
- Mesh fabric with knit lining, high stretch
- Velvet flocked floral pattern
- Sleeveless deep V-neckline
- Tie-back halter straps
- Open back, lower back ruching
- Maxi-length hem, bodycon silhouette
- Runs true to size
Style Number/Barcode: 05101-001550
Category Name: Long Dresses
Price: $45.90
Availability: In Stock
Available Color: OLIVE
Available Size: XS, S, M, L, XL
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Lorena Lace Bust Mermaid Formal Dress
Special Occasion
This season’s romantic dressing gets a sleeker update. Lace bust cups and a delicate center tie bring trend-forward texture to the Lorena long mermaid dress without overpowering the silhouette. Keep the styling refined for a look that feels fresh and intentional.
Fit & Features
- Lined crepe fabric, moderate stretch
- Sweetheart neckline, underwire bust
- Lace-trimmed bust cups, center bust tie detail
- Wide shoulder straps
- Back zipper and hook-eye closure
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Weddings, black-tie events, rehearsal dinners, engagement parties, cocktail soirees, red-carpet occasions, fashion-forward events, formal celebrations
Style Number/Barcode: 05002-001925
Category Name: Long Dresses
Price: $69.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
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Mariska Tie Back Mermaid Formal Dress
Special Occasion
This mermaid dress pairs a sleek, curve-defining shape with timeless sophistication. The fitted bodice highlights the waist and hips before opening into a fluid floor-length hem, balanced by an off-the-shoulder neckline and statement tie-back bow. The result is graceful, chic, and effortlessly formal.
Fit & Features
- Chiffon/smooth knit fabric, knit lining
- Off-the-shoulder neckline, padded bra cups
- Back zipper and hook-eye closure
- Chiffon foldover bust detail with tie-back design
- Mermaid silhouette with floor-length hem
- Runs true to size
Where to Wear:
Weddings, bridesmaids, black-tie galas, balls, formal celebrations, anniversaries, rehearsal dinners, engagement parties, upscale birthday dinners, red-carpet events
Style Number/Barcode: 05002-001932
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: HUNTER
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Yvette One-Shoulder Train Mermaid Formal Dress
Special Occasion
Clean lines meet statement detail in this formal dress. The one-shoulder neckline and open back create a sleek frame, while the draped train brings fluid movement to the fitted mermaid silhouette. The result feels polished, dramatic, and refined.
Fit & Features
- Smooth lined knit fabric with stretch
- One-shoulder neckline
- Fitted bodice
- Open back with adjustable strap
- Floor-length mermaid silhouette
- Draped train detail
- Runs true to size
Where to Wear:
Weddings, bridesmaids, black-tie galas, formal celebrations, red-carpet events, anniversaries, balls
Style Number/Barcode: 05002-001929
Category Name: Long Dresses
Price: $74.90
Availability: In Stock
Available Color: NAVY
Available Size: XS, S, M, L
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Virelle Floral Flocked Corset Mermaid Dress
Special Occasion
A romantic anniversary calls for a look with a little intrigue. This mermaid gown pairs dimensional floral detailing with a sculpted bodice and daring thigh-high slit for an alluring finish. Because celebrating your love should look just as fabulous as it feels.
Fit & Features
- Floral velvet flocked mesh fabric with knit lining, moderate stretch
- Strapless sculpted neckline
- Corset bodice, back zipper with hook-eye closure
- High front slit
- Floor-length hem
- Mermaid silhouette
- Runs true to size
Where to Wear:
Anniversaries, wedding guests, black-tie events, galas, prom, and special dances.
Style Number/Barcode: 05002-001943
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
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Calithea Flocked Floral Mesh Mermaid Formal Dress
Special Occasion
Flocked florals give this mermaid dress a rich, dimensional finish. The sweetheart neckline and draped bodice shape the fitted silhouette before it flows into a floor-length hem, while the open back adds a sleek contrast. It’s an elegant choice for a wedding guest.
Fit & Features
- Sweetheart neckline with thin spaghetti straps
- Flocked floral mesh
- Draped bodice
- Open back
- Fitted mermaid silhouette with floor-length hem
- Runs true to size
Where to Wear:
Wedding guest, HOCO, prom, formal events, black-tie and galas.
Style Number/Barcode: 05002-001945
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
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Zoraida Plunge Halter Mermaid Gown
Special Occasion
Wedding guest dressing feels instantly more refined with this silhouette. The mermaid gown pairs a plunging halter neckline with pleated bust detailing and an open back for a sleek, formal finish. It’s an elegant choice when the occasion calls for something polished and memorable.
Fit & Features
- Smooth satin fabrication
- Plunging halter neckline with pleated bust
- Open back with halter tie
- Mermaid silhouette with floor length hem
- Body skimming fit through the hips
- Runs true to size
Where to Wear:
Bridesmaid, wedding guest, formal parties, galas and black-tie events.
Style Number/Barcode: 05002-001946
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: NAVY
Available Size: XS, S, M, L, XL
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Maristelia Plunge Halter Mermaid Gown
Special Occasion
Bridesmaid dressing takes a polished turn with this sleek silhouette. The mermaid gown pairs a plunging halter neckline with pleated bust detailing and an open back for a refined formal finish. It’s an elegant choice for standing beside the bride in a look that feels modern and composed.
Fit & Features
- Smooth satin fabrication
- Plunging halter neckline with pleated bust
- Open back with halter tie
- Mermaid silhouette with floor length hem
- Body skimming fit through the hips
- Runs true to size
Where to Wear:
Bridesmaid, wedding guest, anniversaries, galas, formal parties, and black-tie events.
Style Number/Barcode: 05002-001947
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: OLIVE
Available Size: S, M, L, XL
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Lettie Ring Detail Halter Mermaid Formal Dress
Special Occasion
A streamlined shape gets extra impact from the details. The Lettie ring detail halter mermaid formal dress skims the figure through the bodice and hips before opening into a floor-length flare, with an open back adding contrast. The result is polished, dramatic, and refined.
Fit & Features
- Sleek knit fabric, high stretch, knit lining
- Sleeveless halter neckline with tie straps
- Oversized O-ring hardware
- Draped cowl front
- Open back
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Weddings, formal dances, prom, black-tie parties, dressed-up dinners, anniversaries, and the opera or theatre.
Style Number/Barcode: 05002-001950
Category Name: Long Dresses
Price: $69.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L
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Vesper Draped Halter Mermaid Formal Dress
Special Occasion
Draped detailing gives the Vesper formal dress a sleek, elegant finish. The halter neckline twists into a front keyhole cutout, while the fitted bodice and mermaid silhouette create a sculpted floor-length shape, finished with a long sash and open back. It’s a polished choice for a wedding guest.
Fit & Features
- Lined knit fabric, high stretch
- Sleeveless draped halter neckline with front keyhole cutout
- Adjustable spaghetti straps
- Back zipper and hook-eye closure
- Long sash detail
- Fitted bodice, ruched detailing
- Open back
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Wedding guests, anniversary dinners, special nights out, black-tie events, and galas.
Style Number/Barcode: 05002-001956
Category Name: Long Dresses
Price: $79.90
Availability: In Stock
Available Color: OLIVE, BLUE
Available Size: S, L, XL, XS, M
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Nerine Square Neck Mermaid Formal Dress
Special Occasion
The mermaid silhouette gives this formal dress its sleek, sculpted shape. This mermaid formal dress follows the figure through the bodice and hips before easing into a soft flare, while the square neckline keeps the look clean and refined. The result feels polished, elegant, and confidently formal.
Fit & Features
- Lined mesh fabric with stretch
- Square neckline
- Sheer fitted long sleeves
- Open back
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Wedding guests, black-tie galas, formal celebrations, rehearsal dinners, red-carpet events, cocktail parties, anniversaries
Style Number/Barcode: 05002-001952
Category Name: Long Dresses
Price: $69.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
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Florine Cap Sleeve Mermaid Formal Dress
Special Occasion
Elegance is all about the shape, and this dress knows exactly how to deliver. The fitted silhouette creates a sleek, elongated look before opening into a graceful mermaid flare, while the sheer cap sleeves soften the structured square neckline. It feels polished, feminine, and quietly glamorous.
Fit & Features
- Smooth knit stretchy fabric
- Square neckline
- Cap sleeves
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Wedding guests, black-tie galas, balls, cocktail parties, formal celebrations, rehearsal dinners, red-carpet occasions, fashion-forward events, special date nights
Style Number/Barcode: 05002-001953
Category Name: Long Dresses
Price: $79.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Inessa Strapless Scarf Mermaid Formal Dress
Special Occasion
A sleek mermaid silhouette gives the Inessa formal dress an elegant, refined presence. The strapless neckline and attached scarf detail frame the fitted shape, while ruching through the waist and hips adds soft dimension before flowing into a floor-length hem.
Fit & Features
- Sleek knit fabric with knit lining, high stretch
- Strapless straight-across neckline
- Attached scarf detail
- Ruched waist and hip detailing
- Fitted mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Wedding guests, formal parties and dances, black-tie events, galas, date nights, and anniversaries.
Style Number/Barcode: 05002-001957
Category Name: Long Dresses
Price: $69.90
Availability: In Stock
Available Color: NAVY
Available Size: XS, S, M, L, XL
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Nomi Off-The-Shoulder A-Line Formal Dress
Special Occasion
An off-the-shoulder neckline gives the Nomi formal dress an elegant, sculpted look. The crepe fitted bodice flows into a mesh A-line, floor-length skirt with a high front slit, while the scarf detail adds a refined finishing touch.
Fit & Features
- Crepe bodice, pleated off-the-shoulder neckline, short sleeve cuffs
- Asymmetric draped design
- Back zipper with hook-eye closure
- Lined mesh skirt with thigh-high front slit
- A-line silhouette
- Attached long scarf; is removable
- Runs true to size
Where to Wear:
Wedding guests, bridesmaids, black-tie events, galas, and formal parties.
Style Number/Barcode: 05002-001960
Category Name: Long Dresses
Price: $119.90
Availability: In Stock
Available Color: NAVY
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Maelley Glitter Velvet Halter Mermaid Dress
Special Occasion
Everything feels instantly more refined in velvet. The Maelley mermaid dress features a sleek halter neckline, a front keyhole cutout, a thigh-high slit, and a fitted silhouette that flares toward the hem. It’s an elegant choice for a chic celebration with a little edge.
Fit & Features
- Glitter velvet fabric with full-length knit lining
- Sleeveless halter neckline, front keyhole cutout at the bust
- Open back, halter tie-back straps, lower back strap with bar closure
- Lower back ruched detailing
- High-cut front slit
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Wedding guests, formal events, black-tie parties, galas, soirees, and anniversary dinners.
Style Number/Barcode: 05002-001965
Category Name: Long Dresses
Price: $79.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Isabeau Lace-Up Mermaid Formal Dress
Special Occasion
Flocked detailing gives this sleek silhouette the kind of texture that feels luxe instantly. This mermaid formal dress balances a lace-up open back with slender straps and a fitted floor-length shape for a look that feels sultry, refined, and fashion-forward. It’s vintage glamour reworked with a sharper, more modern attitude.
Fit & Features
- Burnout velvet flocked pattern, lined knit fabric
- V-neckline
- Spaghetti straps
- Open strappy back detail
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Weddings, black-tie galas, red-carpet events, balls, holiday parties, formal celebrations, rehearsal dinners, upscale cocktail soirees
Style Number/Barcode: 05002-001959
Category Name: Long Dresses
Price: $79.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Sabley Glitter Velvet Tie-Back Mermaid Dress
Special Occasion
A little shine goes a long way when the invitation calls for something memorable. The Sabley mermaid dress pairs an all-over geometric glitter pattern with a V-neckline and open tie-back for a sleek, elongated finish. Consider it your answer to polished wedding guest dressing.
Fit & Features
- Velvet fabric with full-length knit lining
- Geometric glitter pattern
- Sleeveless V-neckline
- Tank straps, open back with tie detail, lower back zipper with hook-eye closure
- Form-hugging fit, floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Wedding guests, formal parties, galas, soirees, red carpet occasions, and black-tie events.
Style Number/Barcode: 05002-001962
Category Name: Long Dresses
Price: $79.90
Availability: In Stock
Available Color: BLACK, NAVY
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Celestine Open Back Mermaid Formal Dress
Special Occasion
A little mystery in the front, a striking reveal in the back. The crew neckline and long sleeves create a beautifully refined contrast to the figure-hugging shape, while the open back adds an unexpected touch of allure.
Fit & Features
- Smooth knit stretchy fabric
- Crew neckline
- Fitted long sleeves
- Open tie-back detail
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Wedding guests, black-tie galas, balls, red-carpet occasions, rehearsal dinners, formal celebrations, anniversaries, cocktail parties
Style Number/Barcode: 05002-001964
Category Name: Long Dresses
Price: $79.90
Availability: In Stock
Available Color: NAVY
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Avielle Short Sleeve Mermaid Formal Dress
Special Occasion
This formal dress proves that understated can still feel striking. A fitted mermaid silhouette contours through the waist and hips with gathered ruching before extending into a sleek floor-length hem, finished with a refined mock neckline and short sleeves.
Fit & Features
- Smooth lined knit fabric
- Mock neckline
- Short sleeves
- Back zipper and hook-eye closure
- Ruched waist and hip detailing
- Fitted mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, rehearsal dinners, engagement parties, galas, cocktail soirees, formal celebrations, black-tie events
Style Number/Barcode: 05002-001969
Category Name: Long Dresses
Price: $69.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L, XL
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Arietta Strapless Front Slit Formal Dress
Special Occasion
The high front slit brings a sleek, dramatic finish to this formal silhouette. This formal dress pairs a strapless neckline with ruched shaping and a draped wrap-style waist for a look that feels polished, sculpted, and modern. The fitted floor-length shape keeps the overall effect refined.
Fit & Features
- Lined mesh fabric with stretch
- Strapless straight neckline
- Ruched bodice with flexible boning
- Draped wrap-style waist
- High front slit
- Fitted column floor-length silhouette
- Runs true to size
Where to Wear:
Weddings, rehearsal dinners, black-tie galas, red-carpet occasions, formal celebrations, cocktail parties
Style Number/Barcode: 05002-001975
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: PERIWINKLE
Available Size: XS, S, M, L, XL
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Chic Secret Halter Midi Dress
A close fit gives the silhouette its clean start. The halter square neckline keeps the top sharp, while the flared midi hem adds just enough chic style with strappy heels and a clutch for dressy occasions.
Fit & Features
- Lined knit fabric with stretch
- Halter square neckline, tie straps
- Mermaid silhouette
- Flared midi hem
- Runs true to size
Style Number/Barcode: 05101-001588
Category Name: Long Dresses
Price: $44.90
Availability: In Stock
Available Color: BROWN
Available Size: XS, S, M, L, XL
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Aurette Off Shoulder Satin Mermaid Formal Dress
Special Occasion
This mermaid dress balances refined structure with a sultry, curve-skimming shape. The fitted bodice and ruched detailing contour the waist and hips, while the off-the-shoulder neckline and high side slit bring elegant drama to the floor-length silhouette. The result is chic, poised, and touched with glamour.
Fit & Features
- Stretch satin fabric with sheen, knit lining
- Off-the-shoulder neckline
- Back zipper and hook-eye closure
- Ruched waist and hip detailing
- Draped side detail with a high side slit
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Weddings, black-tie galas, cocktail parties, balls, rehearsal dinners, engagement parties, anniversaries, formal celebrations, upscale birthday dinners, red-carpet events
Style Number/Barcode: 05002-001985
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: RED, BLACK
Available Size: XS, S, M, L, XL
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Sabella Rhinestone Spiderweb Mermaid Dress
Special Occasion
A little mystery looks even better with a sculpted silhouette. The Sabella rhinestone mermaid dress keeps the shape sleek and fitted, then adds an off-the-shoulder neckline and sheer bell sleeves for a dramatic Halloween-ready finish. The result feels elevated, sultry, and made for a more glamorous kind of haunting.
Fit & Features
- Rhinestone-embellished, spiderweb pattern
- Lined mesh fabric
- Off-the-shoulder neckline, plunge V-neckline, wired insert
- Back zipper and hook-eye closure
- Long sheer bell sleeves
- Fitted mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Halloween parties, formal events and occasions
Style Number/Barcode: 05002-001980
Category Name: Long Dresses
Price: $89.90
Availability: Out of Stock
Product Badge:- Ships Free
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Zinnia Chiffon Sash Mermaid Formal Dress
Special Occasion
The silhouette stays sleek while the sash brings the drama. This mermaid formal dress fits close through the body before opening into a soft flare, with chiffon panels adding movement behind the shoulders. The effect is sculpted, fluid, and distinctly formal.
Fit & Features
- Smooth knit-lined fabric, high stretch
- Sleeveless boat neckline with long chiffon sash detail
- Open back with tie detail, zipper and hook-eye closure
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Wedding guests, bridesmaids, black-tie events, galas, balls, red-carpet occasions, rehearsal dinners, formal celebrations, anniversaries
Style Number/Barcode: 05002-001982
Category Name: Long Dresses
Price: $89.90
Availability: In Stock
Available Color: WINE
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free