Formal One Shoulder Dresses

Ready to make an entrance that’s all drama, all eyes on you? Formal one shoulder dresses are your ticket to instant main character energy. Whether you’re headed to a black-tie bash or a night where RSVP means “really show up pretty,” these looks bring the perfect mix of elegance and edge. Sweep in with that iconic shoulder-baring moment and let everyone wonder how you manage to look this good. Go ahead, Windsor girl—own the spotlight and let your confidence do the talking.

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$79.90

A black knit mermaid dress featuring a convertible neckline, high front slit, and multiple styling options.

$99.90

4.333334 star rating

A sophisticated black velvet high-low dress with a one-shoulder neckline and ruffle trim.

$69.90

A rust-colored, floor-length mermaid dress in slinky knit with a one-shoulder neckline and open back.

$59.90

4 star rating

A sleek black knit formal dress featuring a one-shoulder neckline and ruffled high side slit.

$59.90

4 star rating

A sleek black knit mermaid gown featuring a one-shoulder neckline, side cutout, and attached sash.

$79.90

A chic green bodycon dress with an off-shoulder neckline, side ruching, and high slit.

$59.90

4.466667 star rating

A glamorous black bodycon dress featuring glitter knit fabric, off-the-shoulder neckline, and high slit.

$59.90

4.714286 star rating

A sleek eggplant column dress with a cutout accent and high side slit for sultry allure.

Sale

$19.97 $79.90 75% off

4.5 star rating

A sophisticated green off-the-shoulder mermaid dress with a sultry wrap slit and padded bra cups.

$79.90

5 star rating

A black glitter mesh mermaid dress with off-the-shoulder neckline and sheer long sleeves.

$69.90

5 star rating

A stunning red satin formal dress featuring a one-shoulder design and high front wrap slit.

$59.90

5 star rating

A sparkling mocha glitter knit dress featuring a one-shoulder neckline, tie-back, and mermaid silhouette.

$69.90

4.642857 star rating

A black floor-length formal dress with a glitter mesh overlay and a cowl neckline.

$59.90

4.490566 star rating

A black satin midi dress with a pleated cowl neckline, midriff cutout, and high side slit.

$69.90

4.772728 star rating

A periwinkle mesh off-the-shoulder dress with ruched seams and a mermaid silhouette.

$74.90

4.428571 star rating

An elegant red mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.

$69.90

4.125 star rating

A glamorous black off-the-shoulder mermaid dress with glitter fabric and a high front slit.

$59.90

4.6 star rating

A green satin off-the-shoulder midi dress with a sweetheart neckline and ruched wrap design.

$64.90

5 star rating

An elegant black mesh dress featuring an off-the-shoulder neckline, sheer long sleeves, and a high side slit.

$79.90

5 star rating

A blue floral mesh dress featuring an off-the-shoulder ruffled neckline and elegant mermaid silhouette.

Sale

$19.97 $119.90 83% off

5 star rating

A navy blue glitter knit formal dress featuring an off-the-shoulder neckline and mermaid silhouette.

$69.90

4.5 star rating

A rust-colored off-shoulder mermaid dress with a twist-accent open back in smooth knit fabric.

$36.90

5 star rating

A chic black one-shoulder mini dress with a bodycon silhouette and fitted long sleeve.

$69.90

5 star rating

A navy blue satin midi dress featuring off-the-shoulder neckline, floral appliqué, and faux pearl accents.

$39.90

5 star rating

A sassy black one-shoulder bodycon mini dress in ribbed knit fabric, perfect for parties.

$59.90

3 star rating

A chic black velvet mermaid dress with a one-shoulder neckline and high front wrap slit.

$34.90

A pink stretch satin mini dress with a one-shoulder neckline and alluring strappy back design.

$59.90

A stunning black mesh formal dress featuring a one-shoulder neckline and elegant mermaid silhouette.

$59.90

A black mini dress with an asymmetrical one-shoulder design and shimmering rhinestone embellishments.

$56.90

A versatile black knit bodycon midi dress with a convertible neckline for multiple styling options.

Sale

$28 $38.90 28% off

A navy blue velvet mini dress with an asymmetric one-shoulder neckline and dramatic balloon sleeve.

$39.90

4.584796 star rating

A chic black crepe wrap dress with a high slit, adjustable straps, and ruched detailing.

$36.90

4.621622 star rating

An elegant pink off-the-shoulder midi dress with a bodycon fit and flared hem in knit fabric.

Sale

$19.97 $54.90 64% off

4.447761 star rating

A lavender mesh corset column dress featuring a sweetheart neckline and high-side slit for elegance.

$89.90

4.84 star rating

A stunning red off-the-shoulder mermaid dress with side ruching and a dramatic high front slit.

Sale

$15.97 $54.90 71% off

4.227273 star rating

A burgundy formal dress with sheer mesh sleeves, high slit, and curve-hugging silhouette.

$109.90

4.727273 star rating

A stunning black sequin dress with a lace-up back, sweetheart neckline, and high front slit.

$109.90

4.666667 star rating

An elegant navy blue satin gown with a cold shoulder design and sultry front slit.

$74.90

4.375 star rating

A chic brown satin formal dress with a cold shoulder and ruched mermaid silhouette.

$48.90

4.9 star rating

An elegant black off-the-shoulder midi dress with ruched sides and a flattering bodycon fit.

$62.90

4.444445 star rating

A chic green mermaid dress with a cold-shoulder design and a thigh-high front slit.

$59.90

4.333334 star rating

A stunning periwinkle mesh dress with a ruched mermaid silhouette and off-the-shoulder neckline.

$149.90

5 star rating

A peach column dress with sequin beaded mesh, adjustable straps, and a high side slit.

$89.90

4.75 star rating

A chic teal satin formal dress featuring a cold shoulder design and high front wrap slit.

$59.90

5 star rating

A black off-the-shoulder mermaid gown featuring luxe ruching, sheer lace bodice, and smooth knit fabric.

$89.90

4.333334 star rating

A black floor-length bodycon dress featuring a sheer lace corset bodice and sultry cold shoulder design.

$54.90

5 star rating

A mauve mesh and knit mermaid dress featuring an off-shoulder neckline and elegant floral print.

$89.90

4.5 star rating

An elegant ivory lace mermaid dress featuring ruffled straps and a captivating tie-back design.

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Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2
(121) 4.8099174 star rating

Lavish yourself with a luxe formal dress that elevates your special occasion outfit! Cheyenne features a one-shoulder neckline, a wired V-neck bust, a fitted long sleeve, a high side slit on the floor-length hem, and a curve-hugging A-line silhouette. The long dress is composed of a lined velvet fabric that offers a moderate stretch. Complete the look with rhinestone heels and a sphere clutch. Fit & FeaturesOne-shoulder neckline, wired V-neck bust, Fitted long sleeve, High side slit, floor-length hem, A-line silhouette, Lined velvet fabric, Form-hugging fit, moderate stretch, Strapless or sticky bra recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2 | Size: S | Rhinestone/Velvet Fabric

Windsor Jamie Lace-Up Satin Formal Column Dress in Red
(70) 4.785714 star rating

Dare to stun in the Jamie satin formal dress crafted with silky satin fabric for a gorgeous sheen. The bold plunge halter neckline and open lace-up back will turn heads while the fitted column silhouette flaunts your curves. Fit & FeaturesSilky satin fabric, short knit stretchy lining, Plunge halter V-neckline, shoulder straps, padded bra cups, Lace-up open back, lower zipper with hook-eye closure, High side slit, Fitted column silhouette, Floor-length hem, Runs true to size, Where to Wear:Prom, weddings, galas, and black-tie soirees. Free Shipping on All Orders Over $75. | Windsor Jamie Lace-Up Satin Formal Column Dress in Red | Size: XS | Knit Fabric/Satin Fabric

Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White
(42) 4.571429 star rating

Sophistication meets sultry on the Marjorie formal dress perfect for cocktail parties and dressy family get-togethers. She features sheer chiffon peasant long sleeves, a square neckline, a bodycon silhouette, and a front ruched seam leading to the skin-flaunting slit along her midi-length hem. The formal dress is composed of a lined crepe fabric with a moderate stretch. Style with a chic clutch and heels to complete the look! Fit & FeaturesSheer chiffon peasant long sleeves, square neckline, Front ruched seam, slit detail, Bodycon silhouette, Midi-length hem, Lined crepe fabric, moderate stretch, Bra-friendly design, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White | Size: S | Chiffon/Crepe Fabric

Chic Staple Ribbed Knit Skater Dress in Black
(39) 4.6923075 star rating

A chic staple skater dress featuring a flirty off-the-shoulder folded neckline and a short-length perfect for styling with boots or heels. Fit & FeaturesRibbed knit fabric with plenty of stretch, Off-the-shoulder neckline, fold-over accent, Long fitted sleeves, Short-length hem, Skater silhouette, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Chic Staple Ribbed Knit Skater Dress in Black | Size: M | Knit Fabric

Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black
(36) 4.5833335 star rating

The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure! Make your entrance in this floor-length gown designed to turn heads with a curve-flaunting mermaid fit and backless design. Fit & FeaturesGlitter knit fabric, moderate stretch, Square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout, Where to Wear:Weddings, black tie galas, formal dances, big birthday events, rehearsal dinners, engagement parties, red carpet occasions, upscale glam parties Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black | Size: L | Knit Fabric

Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender
(34) 4.7352943 star rating

A sparkling sequin scroll pattern adds beauty and shine to the glamorous Saige formal long dress! With a lace-up back that turns heads, a curve-hugging mermaid silhouette, and a high slit for a gorgeous look. Fit & FeaturesSequin scroll pattern, mesh fabric, stretchy full knit lining, Sleeveless plunge V-neckline, padded bust, Spaghetti straps, open lace-up back detail, Back zipper and hook-eye closure, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie events, glam functions, and parties. Free Shipping on All Orders Over $75. | Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender | Size: XS | Knit Fabric/Mesh Fabric/Mesh Fabric

Lucille Formal Satin Mermaid Dress in Coral
(29) 4.827586 star rating

The Lucille formal satin dress will have you looking and feeling radiant and luxe! The dress captivates with a lace-up back, mermaid silhouette, and high front slit for effortless allure. Fit & FeaturesLined satin knit fabric, minimal stretch, Sleeveless square neckline, padded bust, adjustable spaghetti straps, Open lace-up back design, zipper and hook-eye closure, Fitted bodice, front ruched seam, high-cut slit, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black tie galas, red-carpet events, nights at the opera or theatre, big milestone celebrations Free Shipping on All Orders Over $75. | Windsor Lucille Formal Satin Mermaid Dress in Coral | Size: L | Knit Fabric/Satin Fabric

Marylou Lace Mesh Plunge Neck Formal Dress in Black
(26) 4.8076925 star rating

Bring the romantic allure to the evening affair in the Marylou lace mesh plunge formal dress! She embodies flirtatious style in a sleeveless plunge V-neckline with a built-in padded bust and adjustable spaghetti straps on her empire waist bodice. The sparkly embroidered lace mesh fabric effortlessly flows into a floor-length silhouette with a high-side slit to showcase some legs. She also features a curve-conscious silhouette to flaunt your stunning figure! Complete the look in an elegant hair clip. Fit & FeaturesPlunge V-neckline, adjustable spaghetti straps, Adhesive bra recommended, built-in padded bust, High side slit, back zipper, hook and eye closure, Empire waist, form-fitting silhouette, Floor-length hem, Sparkly embroidered lace mesh fabric, full knit lining, moderate stretch, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marylou Lace Mesh Plunge Neck Formal Dress in Black | Size: L | Knit Fabric/Mesh Fabric/Mesh Fabric

Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green
(25) 4.84 star rating

Spend an evening in the timeless elegance of the Alicia floor-length formal dress and feel like a work of art! The side ruched seams accentuate your curves along the mermaid silhouette, and the high front slit adds a touch of drama to the floor-length hem. Fit & FeaturesSmooth knit fabric lined with stretchy knit, Padded bra cups, Back zipper and hook-eye closure, High front slit, Mermaid silhouette, Runs true to size, Where to Wear:Prom, galas, black tie parties, weddings, bridesmaids, nights at the theatre and opera, red-carpets Free Shipping on All Orders Over $75. | Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green | Size: XS | Knit Fabric

Emmie Lace-Up Mermaid Satin Formal Dress in Brown
(22) 4.590909 star rating

Sleek and sophisticated! The Emmie satin formal dress exudes elegance with a lace-up back and flattering mermaid silhouette that accentuates your figure. Fit & FeaturesStretchy satin-knit fabric, lined bust, Spaghetti straps, V-neckline, Lace-up back, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie galas, weddings, bridesmaids, formal parties, and red-carpet events. Free Shipping on All Orders Over $75. | Windsor Emmie Lace-Up Mermaid Satin Formal Dress in Brown | Size: L | Satin Fabric

Formal One Shoulder Dresses

Step into the spotlight and let your confidence do the talking—because formal one shoulder dresses are made for main character moments. These stunners aren’t just a look; they’re a whole vibe, perfect for the bold, the daring, and anyone who knows how to make an entrance. Whether you’re heading to a gala, a black-tie wedding, or that long-awaited milestone celebration, a one shoulder dress instantly sets you apart from the crowd. The asymmetrical neckline draws the eye, framing your shoulders and collarbones with a touch of drama that’s equal parts classic and unexpected. It’s the dress that says you’re here to have fun, to own your power, and to leave a little sparkle wherever you go. Picture yourself gliding across the dance floor, the fabric catching the light with every move, or posing for those must-have group selfies—because let’s be real, you’re about to break the internet.

Choosing the perfect one shoulder dress is all about expressing your unique style while embracing that “I woke up like this” confidence. Maybe you’re drawn to sleek, curve-hugging silhouettes that let your figure do the talking, or perhaps you love a flowy, goddess-inspired gown that sways with every step. Don’t forget the details—think daring slits, luxe fabrics, and subtle embellishments that make your look unforgettable. And if you’re gifting a dress one shoulder style to your bestie, sister, or that friend who’s always up for a little glam, you’re basically handing her the ticket to her next iconic moment. These dresses are the ultimate plus-one for any formal event, and they’re made for the girl who’s not afraid to take risks, turn heads, and dance until sunrise. Pro tip: add statement earrings and a killer clutch, and you’re ready to conquer any room.

If you’re craving a look that’s equal parts timeless and trendsetting, the one sleeve dress or one off the shoulder dress is your secret weapon. It’s the kind of piece that lives rent-free in your memory, long after the last song plays and the confetti settles. Whether you’re keeping it classic with a deep jewel tone or going for bold metallics, you’ll find that one shoulder dresses have a way of making every moment feel like a celebration. And if you’re dreaming of an effortlessly chic look in the ultimate shade, don’t miss our curated selection of Black One Shoulder Formal Dresses—because nothing says “iconic” like a little black dress with a twist. So go ahead, let your dress do the talking, and get ready to make memories that are as unforgettable as your style.