Knit Formal Dresses

Knit formal dresses are your secret weapon for nailing that effortlessly chic vibe while staying cozy and comfortable. Picture this: a blend of sophistication and snugness that takes you from dinner parties to date nights without missing a beat. These dresses are all about serving looks and keeping you warm, making them the ultimate choice for any event where style meets ease. Get ready to strut your stuff with confidence, because knit formal dresses are here to make sure you're always the star of the show.

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Best Seller

$59.90

4.133333 star rating

A glamorous black glitter knit dress with a cowl neckline, cross back, and high front slit.

$74.90

4.416667 star rating

A navy blue glitter knit mermaid dress with a square neckline and lace-up open back.

Best Seller

$84.90

4.558824 star rating

A black glitter knit mermaid dress with a bow-back design and floor-length train for formal occasions.

$76.90

4.727273 star rating

A light blue glitter mini dress with a strapless neckline and detachable bow train.

$79.90

4.6 star rating

A black knit mermaid dress with glitter, cowl neckline, and high slit for formal occasions.

$89.90

4.25 star rating

A glamorous yellow mermaid dress with glitter knit fabric, ruching, and a stylish lower back cutout.

Best Seller

$59.90

4.466667 star rating

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

$89.90

4.2 star rating

A navy blue bodycon dress with glitter polka dots, lace-up back, and adjustable spaghetti straps.

$59.90

4.6 star rating

A sage glitter knit formal dress with a high slit and sleeveless cowl neckline for prom elegance.

$89.90

4.8 star rating

A rust-colored formal gown in smooth stretchy knit with a lace-up back, padded bust, and thigh-high slit.

Best Seller

$59.90

4.857143 star rating

A luxurious wine-colored strapless dress with a high slit, perfect for formal occasions.

$74.90

4.461538 star rating

A stunning black mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.

$59.90

4.846154 star rating

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

$49.90

4.166667 star rating

A burgundy formal dress with a ruffled high slit, open back, and sleek knit fabric.

$59.90

4.75 star rating

A maroon knit mermaid dress featuring a sweetheart neckline, cowl draping, and a high front slit.

Sale

$19.97 $69.90 71% off

4.454546 star rating

A pink glitter knit mermaid dress with a lace-up back and high front slit.

$54.90

4.6 star rating

A black glitter knit midi dress with a form-hugging silhouette and chic wrap hem.

Best Seller

$69.90

4.666667 star rating

A green knit mermaid dress featuring a halter V-neckline and striking strappy open back design.

$69.90

4.25 star rating

A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.

$79.90

4.5 star rating

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

$69.90

4.428571 star rating

A green off-the-shoulder mermaid dress with a twisted sweetheart neckline and high front slit.

$69.90

4.666667 star rating

A dazzling pink glitter knit formal dress with a cowl neckline and high front wrap slit.

$79.90

4.833334 star rating

A red glitter knit mermaid dress with a lace-up back and high front slit for elegance.

$89.90

4.333334 star rating

A dazzling red glitter knit dress with a scoop neckline, open back, and floor-length hem.

$69.90

4.5 star rating

A brown mermaid formal dress with a halter V-neckline and open back in smooth knit fabric.

Sale

$19.97 $69.90 71% off

3.4 star rating

A glamorous green glitter formal dress with sheer sleeves, sweetheart neckline, and a high front slit.

$64.90

4.8 star rating

An elegant olive mermaid dress featuring a cowl neckline, spaghetti straps, and an open tie-back design.

$79.90

4.2 star rating

A mint column formal dress with an open back, ruched seams, and a high front slit.

$99.90

4.6 star rating

A stunning light blue formal dress with rhinestones, featuring a strapless neckline and cowl back design.

$64.90

4.6 star rating

A green knit mermaid dress with a cowl neckline, spaghetti straps, and a high front slit.

Sale

$24.97 $49.90 50% off

4.75 star rating

A chic orange mermaid dress with a cowl neckline and adjustable spaghetti straps in stretchy knit fabric.

$64.90

5 star rating

A royal blue formal dress with a V-neckline, strappy back, and high side slit.

$36.90

3.75 star rating

A black knit midi dress with a sleeveless square neckline, ruching, and pleated mermaid silhouette.

$62.90

4.25 star rating

A black satin knit formal dress with a ruched bodice, square neckline, and sultry front slit.

$74.90

3.75 star rating

A black glitter knit mermaid dress with a halter neckline and high front wrap slit.

$79.90

4.5 star rating

A glamorous green mermaid dress with glitter knit fabric, cowl neckline, and lace-up back.

$74.90

4.666667 star rating

A navy blue glitter knit one-shoulder dress with a high slit and floor-length silhouette.

$59.90

5 star rating

A mocha knit mermaid dress featuring a halter V-neckline, open back, and silky smooth finish.

$99.90

4.666667 star rating

A navy blue mermaid gown with glitter knit fabric, cowl neckline, and adjustable spaghetti straps.

$79.90

3.333333 star rating

A strapless green mermaid dress with glitter knit fabric and a high front wrap slit.

Sale

$19.97 $69.90 71% off

5 star rating

A lavender glitter knit mermaid dress with a V-neck, high slit, and adjustable straps.

Sale

$9.97 $42.90 77% off

4 star rating

A chic black strapless midi dress with a cowl-draped neckline and asymmetric hem for allure.

$164.90

5 star rating

A black mermaid formal dress featuring a corset bodice, lace-up back, and high front slit.

$59.90

5 star rating

A chic black crepe formal dress featuring a lace-up back, high slit, and slim silhouette.

$59.90

5 star rating

A chic navy blue midi dress with glitter knit fabric, sweetheart neckline, and lace-up back.

$59.90

5 star rating

A stunning strapless mermaid dress in red glitter knit, perfect for formal events.

$42.90

5 star rating

A black glitter knit midi dress with a cowl neckline, cross-back design, and high side slit.

$69.90

5 star rating

An elegant black mermaid dress with a glitter knit fabric and pleated cowl neck overlay.

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Windsor Rowena Sequin Mermaid Dress in Navy Blue
(166) 4.7228913 star rating

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

Sophie Glitter Knit Mermaid Dress in Navy Blue
(36) 4.4166665 star rating

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

Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black
(35) 4.571429 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: S | Knit 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

Windsor Priscilla Formal Satin Strapless Mermaid Dress in Sage
(25) 4.4 star rating

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 Sage | Size: L | Satin Fabric

Alicia Off-The-Shoulder Mermaid Formal Dress in Brown
(24) 4.8333335 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 Brown | Size: M | Knit Fabric

Delia Formal Cowl Neck Long Dress in Mauve
(21) 4.904762 star rating

Flattery will get you everywhere in the Delia formal long dress that boasts a flattering mermaid silhouette with a high front slit for effortless allure all evening! Fit & FeaturesLined smooth knit fabric, moderate stretch, Sleeveless cowl neck, pleating, Spaghetti straps, lace-up back, Mermaid silhouette, High front slit, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, engagement parties, rehearsal dinners, milestone celebrations, dinner parties, and dressy date nights. Free Shipping on All Orders Over $75. | Windsor Delia Formal Cowl Neck Long Dress in Mauve | Size: XL | Knit Fabric

Windsor Shay Formal Lurex Glitter Dress in Rose Gold
(20) 4.45 star rating

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

Ashelyn Cowl Neck Glitter Mermaid Formal Dress in Black
(20) 4.6 star rating

Prepare to make a grand entrance in the Ashelyn glitter long formal dress looking like a true masterpiece for prom or special birthday events! Her luxurious knit fabric boasts a mesmerizing glitter pattern, while the side ruching and mermaid silhouette accentuate your curves while the high front slit shows off your shoes of the night. The cowl neckline and padded bra cups offer a flattering and comfortable fit. Style this formal gown with glam earrings and a hair accessory for a stunning look all evening! Fit & FeaturesGlitter pattern, knit fabric lined with jersey knit, Padded bra cups, Adjustable spaghetti straps, High front slit, Back zipper and hook-eye closure, Mermaid silhouette, floor-length, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Ashelyn Cowl Neck Glitter Mermaid Formal Dress in Black | Size: XS | Knit Fabric

Emmie Lace-Up Mermaid Satin Formal Dress in Sage
(20) 4.55 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 Sage | Size: XS | Satin Fabric

Knit Formal Dresses

When you’re ready to own the night with a look that’s as effortlessly cool as it is totally luxe, knit formal dresses are your ride-or-die. These stunners are the secret weapon of every girl who wants to slay the dress code without sacrificing comfort. Imagine gliding into a rooftop party or a candlelit dinner, your dress hugging every curve in all the right ways, the soft knit fabric moving with you as you dance, laugh, and live your best life. That’s the magic of a knit formal dress: it’s got your back, whether you’re making a grand entrance at a gala or keeping it low-key but glam at a bestie’s birthday. The beauty of these dresses is in their versatility—knit fabric can go from sleek and sculpted to flowy and romantic, always serving up those “who is she?” vibes. If you’re gifting, knit formal dresses are the ultimate power move for your fashion-obsessed sister, your partner who loves a little extra sparkle, or your BFF who’s always the last to leave the dance floor. They’re the kind of gift that says, “I see you, and you deserve to feel iconic.”

When it comes to picking out the perfect knit formal dress, it’s all about finding that sweet spot between style and comfort. Look for details that elevate your look—think chic necklines, daring slits, or unexpected cutouts that keep things fresh and flirty. The best part? Knit fabric means you never have to worry about feeling restricted or stiff, even if your night turns into a spontaneous adventure. These dresses are made for those who want to move, groove, and break a few hearts along the way. Whether you’re tall, petite, curvy, or somewhere in between, the stretch and drape of knit formal dresses mean you get a fit that feels custom, no tailor required. Pair your dress with killer heels and statement jewelry for a look that’s pure main-character energy, or keep it chill with strappy sandals and a denim jacket for those after-hours hangs. And if you’re already obsessed with the way knits make you look and feel, take your party style up a notch with our curated selection of Knit Cocktail Dresses—because every occasion deserves a little extra wow factor.

The real secret to making a knit formal dress your own? Confidence. These dresses are built for the girl who isn’t afraid to be the center of attention, who knows that comfort and style aren’t mutually exclusive, and who’s always down to turn a regular night into a legendary one. Picture yourself twirling under string lights, feeling the fabric glide with you, or catching your reflection and thinking, “Yeah, I really am that girl.” That’s what a knit formal dress brings to your closet: endless possibilities, major comfort, and the kind of head-turning style that makes every moment feel like a celebration. Whether you’re shopping for yourself or looking to give someone a gift that’ll instantly boost their mood and their wardrobe, knit formal dresses are always the right move—because you deserve to look as good as you feel, every single night.

Top Picks For Knit Formal Dresses