Formal Knit Dresses
Formal knit dresses are your secret weapon for turning heads and breaking hearts, all while keeping things effortlessly chic. These beauties blend the elegance of formal wear with the cozy comfort of knits, making them perfect for any occasion where you want to look fab without the fuss. Whether you're strutting into a work event or dazzling at a dinner party, these dresses have got your back, making sure you feel like the unstoppable force of nature you truly are. So go ahead, make every entrance a grand one and show the world just how fierce a formal knit dress can be!
$69.90
A mint mermaid formal dress featuring a cowl neckline, spaghetti straps, and a high front slit.
$109.90 - $149.90
A pink mermaid silhouette dress with sequin-scroll pattern, V-neckline, and lace-up back.
$77 $109.90 30% off
A green sequin scroll dress with a plunging V-neckline and open lace-up back.
$74.90
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back design.
$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 wine satin midi dress with a corset seam bodice and pleated faux wrap hem.
$9.97 $54.90 82% off
A brown glitter-knit mini dress with a cowl neckline and bodycon silhouette, perfect for formal events.
$84.90
A glamorous pink glitter knit mermaid dress with a bow-back and floor-length train.
$69.90
A green satin formal dress featuring a cowl neckline, high slit, and slim-fit silhouette.
$59.90 - $64.90
A pink mermaid silhouette dress with a cowl neck, high slit, and lace-up back.
$29.97 $54.90 45% off
A burgundy formal dress with sheer mesh sleeves, high slit, and curve-hugging silhouette.
$69.90
A periwinkle mesh off-the-shoulder dress with ruched seams and a mermaid silhouette.
$89.90
A black knit mermaid dress featuring an off-the-shoulder neckline and dramatic high front slit.
$59.90
A mauve floral mesh mermaid dress with a lace-up back, high slit, and floor-length hem.
$89.90
An orange bodycon dress with glitter polka dots, lace-up back, and adjustable spaghetti straps.
$59.90
A sage glitter knit formal dress with a high slit and sleeveless cowl neckline for prom elegance.
$79.90
An elegant wine satin dress with intricate embroidery, beaded accents, and a flattering curve-hugging silhouette.
$159.90
A strapless pink formal dress with beaded mesh, cowl neckline, and high front slit.
$59.90
A sleek green formal dress with a cowl neckline, front cutout, and high side slit.
$74.90
A stunning red mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.
$77 $109.90 30% off
A stunning royal blue mermaid dress with sequins, adjustable straps, and a high front slit.
$19.97 $69.90 71% off
A pink glitter knit mermaid dress with a lace-up back and high front slit.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$49.90
A sleek green satin midi dress with a corset bodice and high front wrap slit.
$59.90
A black satin slim-fit formal dress featuring a corset bodice and floor-length hem with slit.
$79.90
A sophisticated green off-the-shoulder mermaid dress featuring a sultry wrap slit and padded cups.
$69.90
A wine-colored mermaid dress with glitter crepe fabric, cutout bodice, and high front wrap slit.
$69.90
A dazzling pink glitter knit formal dress with a cowl neckline and high front wrap slit.
$79.90
A black satin A-line formal dress featuring a chic tie-back and high front slit.
$69.90
A glamorous green off-the-shoulder mermaid dress with textured glitter fabric and a high front slit.
$89.90
A dazzling red glitter knit dress with a scoop neckline, open back, and floor-length hem.
$69.90
A brown mermaid formal dress featuring a halter V-neckline and open back in smooth knit fabric.
$29.97 $69.90 57% off
A glamorous green glitter formal dress with sheer sleeves, sweetheart neckline, and a high front slit.
$64.90
A green knit mermaid dress with a cowl neckline, spaghetti straps, and a high front slit.
$59.90
A luxurious black velvet gown with a strapless sweetheart neckline and high front wrap slit.
$64.90
An elegant olive mermaid dress featuring a cowl neckline, spaghetti straps, and an open tie-back design.
$79.90
A mint column formal dress with an open back, high slit, and ruched seams for elegance.
$49.90
A chic orange mermaid dress with a cowl neckline and adjustable spaghetti straps in stretchy knit fabric.
$42 $59.90 30% off
A white crepe formal dress featuring adjustable straps, ruffle trim, and a dramatic high front slit.
$62.90
A black satin knit formal dress with a ruched bodice, square neckline, and sultry front slit.
$79.90
A chic black mermaid dress with a sheer mesh corset bodice and adjustable crisscross straps.
$9.97 $49.90 80% off
A sophisticated black crepe formal dress featuring a cowl neckline, high side slit, and slim silhouette.
$59.90
A mauve mesh mermaid dress with a sweetheart neckline, lace-up back, and elegant ruching.
$74.90
A black glitter knit mermaid dress with a halter neckline and high front wrap slit.
$74.90
A black glitter knit mermaid dress with a lace-up back and flattering V-neckline.
$84.90
A silver metallic mermaid dress with a cowl neckline and alluring open-back design.
$64.90
A royal blue formal dress with a V-neckline, strappy back, and high side slit.
$99.90
A stunning light blue formal dress with rhinestones, featuring a strapless neckline and cowl back design.
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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
Formal Knit Dresses
When it comes to making a statement at any big event, nothing beats the effortless confidence of a formal knit dress. There’s just something about the way a knit hugs your curves, smooths your lines, and moves with you—like it was made for your body and your body alone. Imagine slipping into a knitt evening dress that feels as soft as your favorite lounge set but looks like you just stepped off the runway. That’s the magic of a Windsor knit: it’s equal parts comfort and glam, ready to turn every entrance into a main character moment. Whether you’re heading to a gala, a formal dinner, or even looking for that perfect knit prom dress, these dresses have your back (and your best angles). They’re the secret weapon for anyone who wants to look polished without sacrificing a single bit of comfort. And let’s be real—when the dance floor calls your name or the after-party runs late, you’ll be glad you chose a dress that lets you move, breathe, and live your best life.
Formal knit dresses aren’t just for the “it” girls—they’re for everyone who wants to own the night, no matter the occasion. Maybe you’re shopping for that friend who’s impossible to shop for but always manages to look flawless, or maybe you’re treating yourself because, hello, you deserve it. Gifting a knit formal dress is basically like giving someone the power to slay any event with zero stress—think of it as wrapping up confidence in a bow. And if you’re the one stepping into the spotlight, you’ll love how these dresses mold to your shape, highlight your favorite features, and keep you cool when the room is heating up. Pro tip: look for details like ruching, open backs, or subtle shimmer to take your look to the next level. And don’t be afraid to play with color—deep jewel tones, classic blacks, or even bold brights all look stunning in a knit. Accessorize with statement earrings, strappy heels, and a killer clutch, and you’re set for a night of compliments and memories.
The beauty of a knit formal dress is in its versatility. These aren’t just one-and-done pieces—they’re ready to be reimagined for future events, date nights, or even a fancy brunch when you’re feeling extra. If you’re obsessed with the feel of knits but want something a little more low-key, check out our Knit Casual Dresses for those everyday slay moments. But when the invite says “fancy,” you know a Windsor knit will have you serving looks with zero effort. Every time you reach for that dress, you’ll remember how it made you feel: fearless, fabulous, and totally unstoppable. That’s the kind of energy you deserve, whether you’re stepping onto a red carpet or just making your own spotlight wherever you go.