• Prom Dresses Scarlett Strapless Ruched Satin Ball Gownn Scarlet Red
  • Sold out
  • Formal Dresses Long Sleeve Embellished Sheer Mesh Column Gown Blush Nude
  • Sold out
  • Prom Dresses Floral Embroidered Corset A Line Gown Mauve Pink
  • Sold out
  • Prom Dresses Off Shoulder Embellished Gown with Dramatic Train Aqua
  • Sold out
  • Prom Dresses Strapless Periwinkle Satin Gown with Draped Skirt and Flowing Train Periwinkle
  • Sold out
  • Prom Dresses One Shoulder Beaded Gown with High Slit and Sheer Skirt Ivory/Nude
  • Sold out
  • Formal Dresses Long Sleeve Cut Out Gown with Embellished Jewel Neckline Ivory/Nude
  • Sold out
  • Prom Dresses Kos Couture Nude Beaded Halter Neck Mermaid Gown Nude/Light Beige
  • Sold out
  • Prom Dresses Kos Couture One Shoulder High Slit Ballgown Evening Dress Bright Red
  • Sold out
  • Prom Dresses Chiffon Pleated Halter Gown Beaded Waist Evening Dress Nude
  • Sold out
  • Formal Dresses Off Shoulder Corset Cut Out Gown Structured Evening Dress Black
  • Sold out
  • Prom Dresses Prom Halter Pleated Gown Beaded Bodice Formal Dress Deep Red
  • Sold out
  • Sold out
  • Prom Dresses Prom Printed Deep V Neck Ball Gown with Train Black
  • Sold out
  • Prom Dresses Sequin Embellished Sheer Slit Gown Gold/Blush
  • Sold out
  • Prom Dresses Satin A Line Spaghetti Strap Ball Gown Royal Blue
  • Sold out
  • Prom Dresses Sequined High Neck Ombre Gown with Slit Silver/Blush
  • Sold out
  • Prom Dresses One Shoulder Crepe Gown with Slit and Train Black
  • Sold out
  • Prom Dresses Sequin Mesh Evening Gown Sleeveless Maxi Dress Gold
  • Sold out
  • Prom Dresses Satin Corset Gown with Detachable Train Evening Dress Champagne/Ivory
  • Sold out

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.