Long Black Dresses With Slits
Long black dresses with slits are your secret weapon for turning heads and breaking hearts—effortlessly. Whether you’re plotting a girls’ night out or making an entrance at that invite-only event, these sleek stunners bring all the drama and none of the stress. With every strut, you’ll serve up confidence, attitude, and just the right amount of leg—because why play it safe when you can be unforgettable? Get ready to own the moment and let your long black dress with a slit do all the talking.
$79.90
A black satin mermaid dress featuring a halter neckline, open cross-back, and a high front slit.
$39.90
A captivating black crepe wrap dress with a plunging V-neckline and high front slit.
$46 $64.90 29% off
A black crepe formal dress with puff sleeves, lace-up back, and high-cut slit for prom.
$54.90
A chic black formal dress with sheer mesh fabric, bell sleeves, and a high-side slit.
$69.90
A black glitter knit mermaid dress with a V-neck, high slit, and adjustable spaghetti straps.
$9.97 $44.90 78% off
A chic black crepe midi dress with sheer chiffon sleeves and an elegant tie-back design.
$64.90
A sleek black formal dress with a V-neckline, strappy back, and high side slit.
$49.90
A black crepe mermaid gown with a square neckline, corset bodice, and high front slit.
$79.90
A black strapless glitter formal dress with a high slit and form-hugging fit for elegant events.
$42.90
A sleek black knit midi dress with a cowl neckline, spaghetti straps, and a chic high slit.
$39.90
A sultry black formal dress with rhinestone straps, high slit, and curve-hugging silhouette.
$49.90
A black crepe formal dress with a sleeveless square neckline and a high-cut front slit.
$59.90
A black satin midi dress with a pleated cowl neckline, midriff cutout, and high side slit.
$69.90
A black lace mesh formal dress featuring a plunge V-neckline and high-side slit.
$9.97 $64.90 85% off
A black crepe off-the-shoulder dress with a corset bodice and high front slit.
$109.90
A stunning black sequin dress with a lace-up back, sweetheart neckline, and high front slit.
$74.90
An elegant black mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.
$29.90
A black crepe strapless bodycon dress with a pleated side seam and faux wrap skirt.
$109.90
A black sequin bodycon dress with a high slit, adjustable straps, and a floor-length hem.
$30 $42.90 30% off
A black satin midi dress with a scoop neckline, waist cutout, and thigh-high front slit.
$69.90
A black off-the-shoulder satin dress with a form-hugging fit and alluring front wrap slit.
$79.90
A black satin A-line formal dress featuring a chic tie-back and high front slit.
$69.90
A black glitter formal dress with sheer long sleeves, sweetheart neckline, and high front slit.
$59.90
A luxurious black velvet dress with a sweetheart neckline, sheer mesh bodice, and wrap slit.
$9.97 $59.90 83% off
A chic black velvet formal dress featuring an off-the-shoulder neckline and high side slit.
$99.90
A black strapless sequin mermaid dress with a cutout back and high front slit.
$9.97 $49.90 80% off
A sultry black midi dress featuring velvet and sheer lace with a sweetheart neckline and back slit.
$19.97 $54.90 64% off
A chic black crepe formal dress featuring waist cutouts and a high side slit for allure.
$62.90
A chic black satin formal dress with a ruched bodice, adjustable straps, and a front slit.
$19.97 $64.90 69% off
A black satin slim fit dress with a square neckline and ruffled high-side slit.
$79.90
A stunning black satin mermaid dress with a high slit and elegant train for formal events.
$59.90
A sophisticated black mermaid dress featuring a mock neckline, high front slit, and ruched waist.
$49.90
A black sheer midi dress with off-the-shoulder neckline, plunging v-neck, and high-side slit.
$109.90
A glamorous black satin formal dress featuring a lace corset bodice and high front wrap slit.
$79.90
A glamorous black glitter mermaid dress featuring an open back and high front slit.
$9.97 $79.90 88% off
A chic black mermaid dress with marabou feather trim and a thigh-high slit in crepe fabric.
$29.97 $69.90 57% off
A luxurious black velvet mermaid dress featuring a sweetheart neckline, high side slit, and long sleeves.
$69.90
A black mesh mermaid dress with a halter neckline, lace sequin cups, and front wrap slit.
$89.90
A black floor-length bodycon dress featuring a cold shoulder design and sheer lace corset bodice.
$9.97 $42.90 77% off
A chic black strapless midi dress with a cowl-draped neckline and asymmetric hem for allure.
$79.90
A black glitter formal dress featuring a cutout bodice, high slit, and adjustable spaghetti straps.
$9.97 $59.90 83% off
A sultry black formal dress with a plunging V-neckline, ruched waist, and high side slit.
$59.90
A sophisticated black velvet strapless mermaid dress featuring a high slit and lace-up back design.
$64.90
An elegant black mesh dress featuring an off-the-shoulder neckline, sheer long sleeves, and a high side slit.
$164.90
A black mermaid formal dress featuring a corset bodice, lace-up back, and high front slit.
$59.90
A chic black crepe formal dress featuring a lace-up back, high slit, and slim silhouette.
$26.97 $59.90 55% off
A chic black satin maxi dress featuring a halter neckline and a high front slit.
$59.90
A chic black velvet mermaid dress with a one-shoulder neckline and high front wrap slit.
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Chic and glamorous, the Rowena sequin mermaid long dress will stylishly elevate your formal night-out look. With a lace-up strap design and fitted mermaid silhouette with a high slit, you'll deliver stunning style. Fit & FeaturesSheer mesh fabric, knit lining, moderate stretch, embroidered sequin scroll design, Sleeveless square neckline, padded bust, Spaghetti straps, open back, lace-up strap design, tie closure, Lower back zipper with hook and eye closure, High waist seam, Fitted floor-length mermaid silhouette, high front slit, Runs true to size, Where to Wear:Prom, black-tie parties and galas, fancy engagement parties Free Shipping on All Orders Over $75. | Windsor Rowena Sequin Mermaid Dress in Navy Blue | Size: M | Knit Fabric/Mesh Fabric/Sheer Mesh Fabric
Windsor Lola Formal High Slit Glitzy Glitter Dress in Navy Blue
$29.97 $59.90
50% off
Flaunt your glam style in the fabulous Lola high slit glitter dress! She features a trendy cowl neckline with a slim-fit bodice, a floor-sweeping silhouette with a sultry high side slit to elongate your legs, and a form-hugging fit. She is composed of glitzy glitter knit fabric that offers a curve-hugging fit with a moderate stretch. Pair this gorgeous long dress with a sleek ring set to add some glamour to your look for your special occasion. Fit & FeaturesCowl neckline, spaghetti straps, Slim-fit bodice, form-hugging fit, Floor-length silhouette, Thigh-high side slit, Glitter knit fabric, mini-length inner knit lining, moderate stretch, Sticky bra recommended, Runs true to size, The saturation of glitter varies. Glitter may transfer. Free Shipping on All Orders Over $75. | Windsor Lola Formal High Slit Glitzy Glitter Dress in Navy Blue | Size: L | Knit Fabric
Effortlessly elegant, the Sophie glitter knit mermaid dress would be a stunning choice for a formal gala. She features a square neckline, short puff sleeves, a partially open back with a lace-up strappy design for a customized fit, a high waist seam, a floor-length hem, and a mermaid silhouette with a high front slit to showcase your heels. The glitter knit fabric offers a moderate stretch. Complete the look in this long dress with rhinestone statement earrings. Fit & FeaturesSquare neckline, Short puff sleeves, Open back, lace-up strappy design, tie closure, High waist seam, Floor-length hem, mermaid silhouette, front slit, Glitter knit fabric, moderate stretch, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Sophie Glitter Knit Mermaid Dress in Navy Blue | Size: S | Knit Fabric/Rhinestone
The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure. She features a sleeveless square neckline, a bold backless design, a high waist seam, a chic bow accent at the lower back with a flowy floor-length train, a floor-sweeping hem with a mermaid silhouette, and a form-hugging fit. Style this long dress with a rhinestone clutch for a black-tie wedding. Fit & FeaturesSleeveless square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Form-hugging fit, Glitter knit fabric, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Light Blue | Size: L | Knit Fabric/Rhinestone
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
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: S | Knit Fabric
Make it an elegant entrance in the Priscilla formal satin dress with a curve-hugging mermaid silhouette and floor-sweeping hem for dramatic flair. Fit & FeaturesLined silky satin fabric, minimal stretch, Strapless sweetheart neckline, Pleated, lightly padded bust, non-slip grip lining, Slim-fit bodice, high waist seam, hip-hugging fit, Floor-sweeping hem, mermaid silhouette, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black-tie galas and events, and fancy milestone celebrations. Free Shipping on All Orders Over $75. | Windsor Priscilla Formal Satin Strapless Mermaid Dress in Taupe | Size: M | Satin Fabric
Sleek and sultry, the Kathie formal satin dress is destined to shine at banquets, galas, and black-tie weddings! She features a sophisticated one-shoulder neckline, a wide shoulder strap, a pleated side seam, a mermaid silhouette, and an asymmetrical high front slit along her graceful long hem. The formal dress is composed of luxurious satin-lined fabric with a sheen effect and minimal stretch. Complete the look with hoop earrings. Fit & FeaturesOne-shoulder neckline, wide shoulder strap, Back zipper and hook-eye closure, Pleated side seam, asymmetrical high front slit, Mermaid silhouette, long hem, Lined silky satin fabric, sheen effect, minimal stretch, Strapless bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Kathie Formal Satin One-Shoulder Dress in Gold-2 | Size: M | Satin Fabric
Stun in the Shay formal glitter dress that makes your entrance that much more glam! Shay features a mermaid silhouette that flaunts your beautiful curves and a floor-length hem for a hint of drama. Fit & FeaturesLine glitter lurex fabric, V-neckline, padded bra cups, Adjustable spaghetti straps, Ruching, mermaid silhouette, Wide banded hem, train , Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout , Where to Wear: Prom, black tie galas and events, red-carpet events, upscale birthdays Free Shipping on All Orders Over $75. | Windsor Shay Formal Lurex Glitter Dress in Rose Gold | Size: XS
Radiate sexy elegance in the Deyna formal long dress perfect for your upcoming black tie soirees! The dress accentuates your curves with side ruched seams and mermaid silhouette create a stunning and flattering shape, while the floor-length hem adds sophistication. Fit & FeaturesAiry mesh fabric, full knit stretchy lining, Off-the-shoulder neckline, ruffled cuffs, cascading ruffles, Back zipper and hook-eye closure, Flexible boning inserts in the bodice, Side ruched seams, mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, fancy garden parties, and dressed-up events. Free Shipping on All Orders Over $75. | Windsor Deyna Formal Mesh Off-The-Shoulder Long Dress in Periwinkle | Size: L | Knit Fabric/Mesh Fabric/Mesh Fabric
Long Black Dresses With Slits
When you’re on the hunt for a look that’s equal parts drama and sophistication, nothing serves main character energy quite like a long black dress with slit. This is the dress that doesn’t just turn heads—it spins them all the way around. Whether you’re plotting your entrance at a rooftop party, owning the dancefloor at a bestie’s birthday bash, or making your mark at a candlelit dinner, a black dress with slit on side is your secret weapon. It’s the kind of piece that’s always in your back pocket (or, you know, your closet), ready to rescue you from every “what should I wear?” crisis. The magic is in the details: a thigh-high slit that lets you serve legs for days, a curve-hugging silhouette that knows your angles, and a deep black hue that works with every skin tone, every mood, and every plan. And if you’re the girl who likes to keep things a little extra, a black dress with slits on both sides brings double the drama and twice the confidence—because why settle for subtle when you can be unforgettable?
Gifting a long black dress with slit is basically handing someone a confidence boost wrapped in fabric. It’s the kind of present that says, “I see you, I love your vibe, and you deserve to feel iconic.” Whether it’s for your sister who just landed her dream job, your best friend who’s about to slay at her graduation, or even your mom who’s ready to celebrate a milestone, this dress is a love letter to their boldest, most fearless self. And let’s talk versatility—these dresses do it all. A black maxi dress with slit is perfect for dancing under the stars, gliding through date nights, or leveling up for a formal event. Want something with a little more coverage? A long black dress with slit and sleeves brings the drama while keeping it classy, making it a go-to for everything from gallery openings to black-tie affairs. The best part? Styling is a breeze. Throw on strappy heels and a sparkly clutch for instant glam, or swap in boots and a leather jacket for an edge that’s pure rockstar. You can even layer with delicate jewelry or go bold with statement pieces—the dress is your canvas, and you’re the artist.
Every Windsor girl knows that the right dress isn’t just about looking good—it’s about feeling unstoppable. That’s why these long black dresses with slits are more than just something you wear; they’re a whole mood. They give you the freedom to move, to dance, to show up for yourself and your crew with confidence that’s impossible to ignore. If you’re dreaming of a night that feels straight out of your favorite movie, or if you want to make your next formal event one for the memory books, you’ll want to check out our Long Prom Dresses With Slit collection. These styles are here to make sure you’re always the best-dressed in the room, no matter where you’re headed. So go ahead—choose the long black dress with slit that matches your vibe, and get ready to own every moment.