• Formal Dresses Long Off Shoulder Formal Prom Evening Dress Black
  • Sold out
  • Formal Dresses Long Plunging Neckline Sexy Formal Prom Dress Black
  • Sold out
  • Prom Dresses Long Floral Sequin Hand Beaded Prom Dress Multi
  • Sold out
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Dark Lilac
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Pink
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Navy
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Fuchsia
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Dark Purple
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Black
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Royal
  • Formal Dresses Long Sequin Sheer Corset Prom Dress Red
  • Prom Dresses Long Fitted Open Back Jersey Prom Dress Navy
  • A stunning long fitted prom dress in rich plum, featuring an elegant open back design that adds a touch of sophistication and allure.
  • A sleek black prom dress featuring a long, fitted silhouette with an elegant open back design, showcasing a blend of sophistication and modern style.
  • A stunning royal blue long fitted prom dress featuring an elegant open back design, crafted from soft jersey fabric that gracefully hugs the silhouette.
  • A stunning magenta long fitted prom dress featuring an elegant open back design, showcasing a sleek silhouette that flows gracefully to the floor.
  • A stunning emerald green long fitted prom dress featuring an open back design, elegantly draping to the floor, perfect for a formal evening event.
  • A stunning long fitted navy prom dress featuring an elegant open back design, crafted from soft jersey fabric that gracefully hugs the silhouette.
  • Formal Dresses Off Shoulder Long Formal Evening Dress Royal
  • Formal Dresses Off Shoulder Long Formal Evening Dress Emerald
  • Formal Dresses Off Shoulder Long Formal Evening Dress Navy
  • Formal Dresses Off Shoulder Long Formal Evening Dress Black
  • Formal Dresses Off Shoulder Long Formal Evening Dress Burgundy
  • Prom Dresses Long Black Formal Ball Gown Party Dress Black
  • Prom Dresses Long Chiffon Corset Formal Prom Dress Red
  • A stunning long chiffon corset formal prom dress in navy, featuring a fitted bodice with intricate detailing and a flowing skirt that cascades elegantly to the floor.
  • Elegant long chiffon corset formal prom dress in black, featuring a fitted bodice and flowing skirt, perfect for a sophisticated evening look.
  • Elegant long chiffon corset formal prom dress in a rich emerald green, featuring a fitted bodice and flowing skirt, perfect for a glamorous evening event.
  • Cocktail Dresses Midi Lace Formal Black Cocktail Dress  Black
  • Cocktail Dresses Midi Lace Formal Black Cocktail Dress Ivory
  • Formal Dresses Long Fitted Corset Formal Off Shoulder Dress Navy
  • Formal Dresses Long Fitted Corset Formal Off Shoulder Dress Navy
  • Mother of the Bride Dresses Short Cocktail Lace Mother of the Bride Dress  Charcoal
  • Wedding Dresses Long Strapless Embroidery Wedding Dress Off White
  • Sold out
  • Wedding Dresses Long Thick Straps Lace Wedding Dress Off White
  • Sold out
  • Mother of the Bride Dresses Off Shoulder Vintage Lace Mother of The Bride Evening Dress Navy
  • Sale
  • Short sleeve charcoal formal couture dress adorned with intricate hand-beaded detailing, showcasing elegance and sophistication.
  • Formal Dresses Short Sleeve Hand Beaded Formal Couture Dress Gold
  • Formal Dresses Short Sleeve Hand Beaded Formal Couture Dress Lilac
  • A stunning short sleeve formal couture dress adorned with intricate hand-beaded details, shimmering in silver tones, perfect for elegant occasions.
  • Formal Dresses Short Sleeve Hand Beaded Formal Couture Dress Black Black
  • Sale
  • Formal Dresses Long Sequin Cape Couture Evening Dress Gold
  • Formal Dresses Long Sequin Cape Couture Evening Dress Royal
  • Sale
  • Prom Dresses Long Chiffon Lace Illusion Formal Prom Dress Emerlad Green
  • Prom Dresses Long Chiffon Lace Illusion Formal Prom Dress Royal Blue
  • Kos Couture DD1359 Long Chiffon Lace Illusion Formal Prom Dress
  • Kos Couture DD1359 Long Chiffon Lace Illusion Formal Prom Dress
  • Kos Couture DD1359 Long Chiffon Lace Illusion Formal Prom Dress
  • Formal Dresses Long Open Sleeve Satin Formal Evening Dress Black
  • Formal Dresses Long Open Sleeve Satin Formal Dress Navy
  • Formal Dresses Long Open Sleeve Satin Formal Evening Dress Emerald
  • Formal Dresses Long Lace Formal Black Evening Dress Black
  • Prom Dresses Open Back Long Sexy Formal Prom Dress Navy
  • Prom Dresses Open Back Long Sexy Formal Prom Dress Black
  • Prom Dresses Open Back Long Sexy Formal Prom Dress Yellow
  • Prom Dresses Open Back Long Sexy Formal Prom Dress Sage
  • Prom Dresses Open Back Long Sexy Formal Prom Dress Red Red
  • Prom Dresses Open Back Long Sexy Formal Prom Dress Periwinkle Periwinkle
  • Kos Couture DD1356 Open Back Long Sexy Formal Prom Dress
  • Sale

Collection: Formal Dresses

At KOS Couture, our Formal Dress Collection redefines modern elegance with a handpicked selection of designer-inspired styles made for life’s most special moments. Whether you’re attending a black-tie gala, a wedding, or an evening celebration, our formal dresses are designed to help you make a lasting impression. 

From timeless evening dresses that exude classic sophistication to modern formal wear crafted with trending details like sequins, lace, and sleek satin finishes — every piece reflects impeccable craftsmanship and feminine grace.

We also offer a beautiful selection for the Mother of the Bride and Groom, ensuring every mother shines with confidence and poise on the big day. Available in both regular and plus sizes, our collection embraces and celebrates every body type with flattering silhouettes that enhance your natural shape.

Discover elegant A-line, mermaid, fit-and-flare, and off-the-shoulder formal dresses in rich tones and luxurious fabrics. At KOS Couture, sophistication isn’t just a look — it’s a feeling.