Skip to content
Buy 2 = 50% off the 3rdBuy 4 = Get 2 free
Hey Collette
Home
New In
Formal & Evening
Formal DressesEvening Dresses & GownsBall GownsYear 12 & School FormalBlack Tie DressesProm DressesBlack Formal Dresses
Cocktail & Party
Cocktail DressesSemi-Formal DressesParty DressesSequin DressesLittle Black Dress
Wedding Guest
Wedding Guest DressesEngagement Party DressesMother of the Bride DressesRace Day Dresses
Shop by
Mini DressesMidi DressesMaxi & Long DressesPlus Size DressesBlack DressesRed DressesWhite & Ivory DressesGreen & Emerald DressesBlue DressesPink Dresses
Under $150
Dresses Under $50Dresses Under $100Dresses Under $150Sale
Search Account Bag · 0
HomeNew InFormal & Evening
Formal DressesEvening Dresses & GownsBall GownsYear 12 & School FormalBlack Tie DressesProm DressesBlack Formal Dresses
Cocktail & Party
Cocktail DressesSemi-Formal DressesParty DressesSequin DressesLittle Black Dress
Wedding Guest
Wedding Guest DressesEngagement Party DressesMother of the Bride DressesRace Day Dresses
Shop by
Mini DressesMidi DressesMaxi & Long DressesPlus Size DressesBlack DressesRed DressesWhite & Ivory DressesGreen & Emerald DressesBlue DressesPink Dresses
Under $150
Dresses Under $50Dresses Under $100Dresses Under $150Sale

Semi-Formal Dresses

Semi-formal dresses for events with a cocktail or smart dress code. Polished, affordable styles under $150.

Buy 2, get 1 50% off the third — automatically applied at checkout
Size Colour Occasion Price
Priya Cut-Out Satin Midi Dress – Emerald
Priya Cut-Out Satin Midi Dress – Emerald
$74.90$93.90
★★★★★
Elowen Satin Cowl Slip Midi Dress – Sage
Elowen Satin Cowl Slip Midi Dress – Sage
$69.90$87.90
★★★★★
Halle Satin Cowl Slip Midi Dress – Gold
Halle Satin Cowl Slip Midi Dress – Gold
$69.90$87.90
★★★★★
Blake One-Shoulder Satin Midi Dress – Cobalt
Blake One-Shoulder Satin Midi Dress – Cobalt
$74.90$93.90
★★★★★
Marlowe Satin Cowl Slip Midi Dress – Teal
Marlowe Satin Cowl Slip Midi Dress – Teal
$69.90$87.90
★★★★★
Cordelia Lace High-Neck Midi Dress – Navy
Cordelia Lace High-Neck Midi Dress – Navy
$84.90$106.90
★★★★★
Anais Off-Shoulder Satin Midi Dress – Black
Anais Off-Shoulder Satin Midi Dress – Black
$74.90$93.90
★★★★★
Aurelie Satin Cowl Slip Midi Dress – Lilac
Aurelie Satin Cowl Slip Midi Dress – Lilac
$69.90$87.90
★★★★★
Freya One-Shoulder Satin Midi Dress – Emerald
Freya One-Shoulder Satin Midi Dress – Emerald
$74.90$93.90
★★★★★
Margot Satin Cowl Slip Midi Dress – Blush Pink
Margot Satin Cowl Slip Midi Dress – Blush Pink
$69.90$87.90
★★★★★
Vera Lace Long-Sleeve Midi Dress – Black
Vera Lace Long-Sleeve Midi Dress – Black
$79.90$99.90
★★★★★
Willow Flutter-Sleeve Chiffon Midi Dress – Navy
Willow Flutter-Sleeve Chiffon Midi Dress – Navy
$84.90$106.90
★★★★★
Load more dresses
Hey Collette

Dresses designed around real bodies, real days, and a wardrobe you actually reach for.

Shop
New in All dresses Wedding guest Sale
Help
Size guide Shipping Returns & refunds FAQ Contact us
Company
About us Join the Collette Club Instagram TikTok
© 2026 Hey Collette. All rights reserved. Privacy Terms Returns

Your cart is empty

Have an account? Log in to check out faster.

Continue shopping

Search

Products

  • Ada Tulle Corset Midi Dress – Blush
    Blush tulle strapless corset midi dress front view Blush tulle corset midi dress side angle

    Ada Tulle Corset Midi Dress – Blush

    Regular price $70.90 Sale price  $56.90
  • Adeline Lace Maxi Gown – Ivory
    Ivory lace maxi gown front view on model Ivory lace maxi gown back view

    Adeline Lace Maxi Gown – Ivory

    Regular price $149.90 Sale price  $119.90
  • Alessia Satin Cowl Gown – Burgundy
    Burgundy satin cowl gown front view on model Burgundy satin cowl gown draped back view

    Alessia Satin Cowl Gown – Burgundy

    Regular price $135.90 Sale price  $108.90
  • Amara Sequin Mini Dress – Emerald
    Emerald sequin mini cocktail dress front view on model Emerald sequin mini dress open back view

    Amara Sequin Mini Dress – Emerald

    Regular price $91.90 Sale price  $72.90