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FORMALS XO
NOW BOOKING APPOINTMENTS FOR PROM 2027 BOOK NOW
King Of Prussia Mall
Book appointment (610) 265-PROM
Oxford Valley Mall
Book appointment (215) 702-8586
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    • All Prom
    • Alyce Paris
    • Amarra
    • Ashley Lauren
    • Ava Presley
    • Colors Dress
    • Ellie Wilde
    • Faviana
    • Faviana Curves
    • Formals XO Exclusives
    • Jasz Couture
    • Jessica Angel
    • Johnathan Kayne
    • Jovani Prom
    • La Femme - Prom
    • Portia & Scarlett Couture
    • Portia & Scarlett Evening
    • Portia & Scarlett Pageant
    • Portia & Scarlett Prom
    • Primavera
    • Primavera Curvy Plus
    • Scala
    • Sherri Hill
    • Stella Prom
    • All Homecoming
    • Alyce Semi-Formal
    • Amarra Homecoming
    • Damas de Vizcaya
    • Faviana Cocktail
    • Formals XO Exclusives Short
    • Jasz Homecoming
    • Jessica Angel Cocktail
    • LaFemme Semi-Formal
    • Portia & Scarlett Cocktail
    • Primavera Short
    • Scala Cocktail
    • Sherri Hill Cocktail
    • Sophia Thomas HOCO
    • All Quinceañera
    • House of Wu Quinceanera
    • Morilee Vizcaya
    • Portia & Scarlett Ballgowns
    • Princesa
  • BOOK APPOINTMENT
  • Prom Gowns

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PROM
  • Alyce Paris
  • Amarra
  • Ashley Lauren
  • Ava Presley
  • Colors Dress
  • Ellie Wilde
  • Faviana
  • Faviana Curves
  • Formals XO Exclusives
  • Jasz Couture
  • Jessica Angel
  • Johnathan Kayne
  • Jovani Prom
  • La Femme - Prom
  • Portia & Scarlett Couture
  • Portia & Scarlett Evening
  • Portia & Scarlett Pageant
  • Portia & Scarlett Prom
  • Primavera
  • Primavera Curvy Plus
  • Scala
  • Sherri Hill
  • Stella Prom
SHERRI HILL COLLECTIONS
  • Sherri Hill Prom
QUINCEANERA & SWEET 16
  • House of Wu Quinceanera
  • Morilee Vizcaya
  • Portia & Scarlett Ballgowns
  • Princesa
HOMECOMING
  • Alyce Semi-Formal
  • Amarra Homecoming
  • Damas de Vizcaya
  • Faviana Cocktail
  • Formals XO Exclusives Short
  • Jasz Homecoming
  • Jessica Angel Cocktail
  • LaFemme Semi-Formal
  • Portia & Scarlett Cocktail
  • Primavera Short
  • Scala Cocktail
  • Sherri Hill Cocktail
  • Sophia Thomas HOCO
BRIDESMAIDS
  • JESSICA ANGEL COLLECTON
MOTHER of the BRIDE/GROOM
  • Montage
SALE
  • Sale Gowns and Dresses
MORE WAYS TO SHOP
  • NEW NEW NEW
  • Ballgowns
  • Bridal Gowns
  • Beaded/Sequin
  • Homecoming
  • Glitter Fabric
  • High-Low
  • Lace
  • Mermaid
  • Prom Gowns
  • Plus Sizes
  • Plain
  • Prints
  • Quinceanera

Prom Gowns

Our collection includes styles by Sherri Hill, Jovani, Jessica Angel, and many more top formalwear designers! Whether you're looking for a glittering mermaid silhouette or a simple, satin A-line dress, we guarantee you'll find something stunning to fall in love with at our boutique. Shop below or in stores at Formals XO, Langhorne, PA and King of Prussia, PA.

Styles

43927 Jovani Prom
New Arrival
IN STOCK

43927 Jovani Prom

3774 Clarisse Prom
IN STOCK

3774 Clarisse Prom

Original price $271 Sale price $259.99
7904 Vienna Prom
IN STOCK

7904 Vienna Prom

Original price $606 Sale price $449.99
32262 La Femme Prom
IN STOCK

32262 La Femme Prom

$378
810125 Clarisse Prom
IN STOCK

810125 Clarisse Prom

Original price $348 Sale price $299.99
19-204 Madison James Prom
IN STOCK

19-204 Madison James Prom

Original price $350 Sale price $325.99
33715 La Femme Prom
IN STOCK

33715 La Femme Prom

$498
33766 La Femme Prom
IN STOCK

33766 La Femme Prom

$568
29872 La Femme Prom
IN STOCK

29872 La Femme Prom

$398
89671 Amarra Prom
IN STOCK

89671 Amarra Prom

$550
30676 La Femme Prom
IN STOCK

30676 La Femme Prom

$378
4741 Jovani Prom
IN STOCK

4741 Jovani Prom

88260 Amarra Prom
IN STOCK

88260 Amarra Prom

$698
88281 Amarra Prom
IN STOCK

88281 Amarra Prom

$398
33019 La Femme Prom
IN STOCK

33019 La Femme Prom

$625
76968A Cassandra Stone by Mac Duggal
IN STOCK

76968A Cassandra Stone by Mac Duggal

Original price $498 Sale price $399.99
89627 Amarra Prom
IN STOCK

89627 Amarra Prom

$618
61741 Alyce Paris Prom
IN STOCK

61741 Alyce Paris Prom

$258
33032 La Femme Prom
IN STOCK

33032 La Femme Prom

$458
30684 La Femme Prom
IN STOCK

30684 La Femme Prom

$450
61867 Alyce Paris Prom
IN STOCK

61867 Alyce Paris Prom

$658
32292 La Femme Prom
IN STOCK

32292 La Femme Prom

$798
4130 Primavera Couture Prom
IN STOCK

4130 Primavera Couture Prom

$559
14007 Curvy by Primavera
IN STOCK

14007 Curvy by Primavera

$425
220110 Jovani Prom
IN STOCK

220110 Jovani Prom

15148 La Femme Prom
IN STOCK

15148 La Femme Prom

Original price $340 Sale price $199.99
PS26208 Portia and Scarlett
IN STOCK

PS26208 Portia and Scarlett

$899
33059 La Femme Prom
IN STOCK

33059 La Femme Prom

$498
4360 Primavera Couture Prom
IN STOCK

4360 Primavera Couture Prom

$499
32300 La Femme Prom
IN STOCK

32300 La Femme Prom

$358
32301 La Femme Prom
IN STOCK

32301 La Femme Prom

$498
67101 Jovani Prom
IN STOCK

67101 Jovani Prom

88829 Amarra Prom
IN STOCK

88829 Amarra Prom

$550
EW122033 Ellie Wilde by Mon Cheri
IN STOCK

EW122033 Ellie Wilde by Mon Cheri

$525
32302 La Femme Prom
IN STOCK

32302 La Femme Prom

$478
88711 Amarra Prom
IN STOCK

88711 Amarra Prom

$498
88816 Amarra Prom
IN STOCK

88816 Amarra Prom

$598
3480 Colors Dress
IN STOCK

3480 Colors Dress

$394
11559 Blush Prom
IN STOCK

11559 Blush Prom

Original price $298 Sale price $249.99
29969 La Femme Prom
IN STOCK

29969 La Femme Prom

$398
PS24678 Portia and Scarlett
IN STOCK

PS24678 Portia and Scarlett

$569
7358 JASZ Couture
IN STOCK

7358 JASZ Couture

$504
14008 Curvy by Primavera
IN STOCK

14008 Curvy by Primavera

$559
61579 Alyce Paris Prom
IN STOCK

61579 Alyce Paris Prom

$512
32307 La Femme Prom
IN STOCK

32307 La Femme Prom

$558
19-162 Madison James Prom
IN STOCK

19-162 Madison James Prom

Original price $330 Sale price $299.99
7987 JASZ Couture
IN STOCK

7987 JASZ Couture

$349
32311 La Femme Prom
IN STOCK

32311 La Femme Prom

$448
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We provide the dress.
You provide the personality.

We want your special occasion shopping experience to be just that - an experience. Our seasoned staff requires an appointment to try on but we encourage you to stop by anytime and browse. To book an appointment, please click the Book Appointment button at the top of this page.

We also require ALL PROM and HOMECOMING SHOPPERS be accompanied by a parent/guardian over 25 years of age because our gowns are very delicate and may require assistance to try on. We have a no food/drink policy in our store for all guests.

XO

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Hours

Monday - Thursday 11-7

Friday & Saturday 10-7

Sunday 11-6

Appointments Required.

$25 Deposit for Prom and Black Tie Appointments

$50 Deposit for Bridesmaid and Mother's Appointments

$100 for Bridal Appointments and Ballgown Appointments

CUSTOMER SERVICE
  • Contact Us
  • King of Prussia Appointment
  • Langhorne Appointment
Information
  • Contact Us
  • F.A.Q.
  • Returns
  • Please No Food or Drinks in the Store! Thank you
My Account
  • My Account
  • Order History
  • Wish List
Locations
Oxford Valley Mall
2300 E Lincoln Hwy
Langhorne, PA 19047

Next to Macy's Upper Level
APPOINTMENT REQUIRED

(215) 702-8586
King Of Prussia Mall
160 N Gulph Rd
King Of Prussia, PA 19406

Next to L.L. Bean Upper Level
APPOINTMENT REQUIRED

(610) 265-PROM
Text Us 484-580-9417

Shopping menu

PROM
  • Alyce Paris
  • Amarra
  • Ashley Lauren
  • Ava Presley
  • Colors Dress
  • Ellie Wilde
  • Faviana
  • Faviana Curves
  • Formals XO Exclusives
  • Jasz Couture
  • Jessica Angel
  • Johnathan Kayne
  • Jovani Prom
  • La Femme - Prom
  • Portia & Scarlett Couture
  • Portia & Scarlett Evening
  • Portia & Scarlett Pageant
  • Portia & Scarlett Prom
  • Primavera
  • Primavera Curvy Plus
  • Scala
  • Sherri Hill
  • Stella Prom
SHERRI HILL COLLECTIONS
  • Sherri Hill Prom
QUINCEANERA &amp; SWEET 16
  • House of Wu Quinceanera
  • Morilee Vizcaya
  • Portia & Scarlett Ballgowns
  • Princesa
HOMECOMING
  • Alyce Semi-Formal
  • Amarra Homecoming
  • Damas de Vizcaya
  • Faviana Cocktail
  • Formals XO Exclusives Short
  • Jasz Homecoming
  • Jessica Angel Cocktail
  • LaFemme Semi-Formal
  • Portia & Scarlett Cocktail
  • Primavera Short
  • Scala Cocktail
  • Sherri Hill Cocktail
  • Sophia Thomas HOCO
BRIDESMAIDS
  • JESSICA ANGEL COLLECTON
MOTHER of the BRIDE/GROOM
  • Montage
SALE
  • Sale Gowns and Dresses
MORE WAYS TO SHOP
  • NEW NEW NEW
  • Ballgowns
  • Bridal Gowns
  • Beaded/Sequin
  • Homecoming
  • Glitter Fabric
  • High-Low
  • Lace
  • Mermaid
  • Prom Gowns
  • Plus Sizes
  • Plain
  • Prints
  • Quinceanera
BOOK APPOINTMENT
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$0$6000

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Select up to 3 sizes

ColorSelect a color
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Silhouette
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BE FIRST TO
KNOW

Your destination for designer-inspired prom dresses, homecoming styles, and unforgettable moments.

HOURS

Monday – Thursday
11–7
Friday & Saturday
10–7
Sunday
11–6

Appointments Required.

Appointment Deposits

$25 Deposit for Prom and Black Tie Appointments

$50 Deposit for Bridesmaid and Mother's Appointments

$100 for Bridal Appointments and Ballgown Appointments

CUSTOMER CARE

  • Appointments
  • FAQ
  • Contact Us
  • Returns & Policy

MY ACCOUNT

  • My Account
  • Order History
  • Wish List

LOCATIONS

Oxford Valley Mall
2300 E Lincoln Hwy, Langhorne, PA 19047
Next to Macy's Upper Level
APPOINTMENT REQUIRED
(215) 702-8586
King Of Prussia Mall
160 N Gulph Rd, King Of Prussia, PA 19406
Next to L.L. Bean Upper Level
APPOINTMENT REQUIRED
(610) 265-PROM
formalsxo@aol.com
Text Us 484-580-9417

BOOK YOUR
APPOINTMENT

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Be the first to shop new arrivals and get exclusive access to our latest styles!